243 Ackley Improved Reference Document.
Version 6.0
Warning:
This document is NOT MEant as a reloading manual. it is a compilation of data gathered from various sources for those interested IN the wildcat 243 Ackley Improved 40° shoulder angle (243AI).As the author and contributing persons of this reference document have no control over individual loading practices or the quality of the firearms in which the resulting ammunition may be used in, and as this is not and never was intended as a reloading manual but is rather a reference document of what others have tried while developing loads for the wildcat 243 AI, no responsibility - either expressed or implied - is assumed for the use of these data.
Loading for WildCAts should be attempted ONLY by experienced handloader familiar with advanced handloading techniques, such as fireforming, neck-turning, and reading pressure signs.
Start all of your load development with loads that are known to be safe in a 243 win and work up slowly. It is common knowledge that a load that is safe in one rifle may not be safe in another.
If you Own a RIFLE CHAMBERED FOR 243AI AND HANDLOAD THEN YOU HAVE DATA WE ARE INTERESTED IN. PLEASE FORWARD youR data and any other information that may be of interest to those loading for this wildcat to milender@ICTC.com so it can be added to this document for others to learn from.
Loading Data INDEX
*55gr Nosler Ballistic Tip
*55gr Nosler Ballistic Tip
*55gr Nosler Ballistic Tip - Moly
*55gr Nosler Ballistic Tip -Moly Coated
*55gr Nosler Ballistic Tip
*58gr Hornady VMax
*60gr HP Sierra
*60gr HP Sierra - Used For Case Forming
*65gr Shilen HP BR - Used For Case Forming
*65gr Shilen HP BR
*68gr Berger MEF
*70gr Hornady SPSX - Moly (Neco Process) - Used For Case Forming
*70gr Speer TNT - Used For Case Forming
*70gr Speer HP TNT
*70gr Hornady HP
*70gr Nosler BT Moly - Used for Case Forming
*70gr Sierra - Moly Coated
*70gr Speer TNT
*70gr Nosler Ballistics Tip - Used for Case Forming
*70gr Speer TNT
*75gr Hornady V-Max
*75gr Sierra HP
*75gr Hornady HP
*80gr Remington PLHP - Used For Case Forming
*80gr Sierra SBT
*80gr Sierra SBT Blitz
*80gr Sierra SBT Blitz - Moly (Midway)
*80gr Berger HP
*80gr Stark RPVB - Moly
*80gr Hornady FMJ - Moly (Neco Process)
*85gr Barnes
*85gr Sierra HPBT
*85gr Sierra HPBT
*85gr Stark RPVB - Moly
*85gr Sierra HP
*87gr Hornady Vmax Moly
*90gr Speer SP - Moly Coated
*95gr Barns X - Moly Coated
*95gr Berger VLD - Moly Coated
*95gr Berger VLD
*95gr Nosler BT - Moly - Used for Case Forming
*95gr Nosler Silver Tip - Moly Coated
*95gr Nosler Ballistic Tip
*95gr Nosler Ballistic Tip - FASTEX coated
*100gr Hornady SP - Used For Case Forming
*100gr Hornady SP - Moly Coated
*100gr Sierra
*100gr Sierra
*100gr Winchester PSP - Used for Case Forming
*100gr Winchester PSP - Used for Case Forming
*100gr Winchester PSP-Moly (Midway)-Used for Case Forming
*105gr Hornady A-Max
*107gr Sierra
*Various Bullets and Powders
*Index of Developers
*Other Related Information
*Letter to Handloader Magazine OCT97
*Reply from Handloader Magazine - Ken Waters
*Reply from Handloader Magazine - Al Miller
*Precision Shooting June 1991
*Precision Shooting Nov 1997
*Additional 243AI References
*Revision Information
*
Owner: 243AI - 31
Rifle: Dogtown HB Varmint Rifle
Barrel length: Hart 27" Match Grade 1.2" contour ?? twist
Primer: CCI BR
Cases: Winchester
Maximum Case Length:
OAL:
|
4080 |
4124 |
fps |
Varget |
46.5 |
47.0 |
gr. |
Groups sizes where as follows (All groups 3 @ 100 yards):
46.5 - .200" (Use this as my load. Best group .056")
47.0 - .463" (No pressure signs)
4198 |
4242 |
4270 |
fps |
|
H380 |
52.0 |
52.5 |
53.0 |
gr. |
Groups sizes where as follows (All groups 3 @ 100 yards):
52.0 - .460" (No pressure signs)
52.5 - .475" (No pressure signs)
53.0 - .750" (No pressure signs)
Other Comments:
No luck with Sierra 60 gr. - grouped agound 1".
Tried early production 58 gr. and 65 gr. Vmax - neither would group consistently.
The 55 gr. are very good out to 500+ yards - Berger 68’s are good for another couple hundred yards.
Owner: 243AI - 14
Rifle: Remington 700 Varmint
Barrel length: Remington 24" Heavy contour ?? twist
Primer: Fed 210M
Cases: Remington
Maximum Case Length:
OAL:
3767 |
3820 |
3872 |
3924 |
fps |
|
H414 |
51.5 |
52.0 |
52.5 |
53.0 |
gr. |
Groups sizes where as follows:
51.5 - .787" (actually a 3 hole group. Two of the holes with 2 bullets)
52.0 - .617" (a double group. One measured .002 for 2 shots and the other .325" for the other 3 shots)
52.5 - .960" (almost complete vertical stringing.)
53.0 - .747" (one group of 3 measured .324 with two displaced off to the left)
All of the above loads are still below listed max for the 243Win loading according to Nosler #4. No pressure signs were seen and cases are not stretching. No ring has appeared where the web thins.
55gr Nosler Ballistic Tip - Moly
Owner: 243AI - 31
Rifle: Dogtown HB Varmint Rifle
Barrel length: Hart 27" Match Grade 1.2" contour ?? twist
Primer: CCI BR
Cases: Winchester
Maximum Case Length:
OAL:
|
4004 |
4037 |
4115 |
4154 |
fps |
Varget |
46.5 |
47.0 |
47.5 |
48.0 |
gr. |
Groups sizes where as follows (All groups 3 @ 100 yards):
46.5 - .421" (No pressure signs)
47.0 - .534" (No pressure signs)
47.5 - .450" (No pressure signs)
48.0 - .227" (No pressure signs)
Other Comments:
No luck with Sierra 60 gr. - grouped agound 1".
Tried early production 58 gr. and 65 gr. Vmax - neither would group consistently.
The 55 gr. are very good out to 500+ yards - Berger 68’s are good for another couple hundred yards.
55gr Nosler Ballistic Tip -Moly Coated
Owner: 243AI - 02
Rifle: Remington 700
Barrel length: Shilen 25" #3 contour 1-10 twist
Primer: WLR
Cases: Winchester
Maximum Case Length:
OAL: 2.687
|
4170 |
4230 |
fps |
||
H4895 |
45.0 |
45.5 |
gr. |
Using 45.0gr of H4895 average group size is .4" 3 shots @ 100 yards.
Using 45.5gr of H4895 average groups size is .6" 3 shots @ 100 yards.
Owner: 243AI - 38
Rifle: Remington 700 S/S
Barrel length: Shilen 26
½" Select Match SS, #8 contour, 1-14 twistPrimer: Rem 9
½Cases: Winchester
Maximum Case Length:
OAL:
|
? |
fps |
XMR4064 |
42.7 |
gr. |
.502" 5 shot group..
|
? |
fps |
Varget |
46.5 |
gr. |
.521" 5 shot group..
Owner: 243AI - 38
Rifle: Remington 700 S/S
Barrel length: Shilen 26
½" Select Match SS, #8 contour, 1-14 twistPrimer: Rem 9
½Cases: Winchester
Maximum Case Length:
OAL:
|
? |
fps |
XMR4064 |
42.5 |
gr. |
.494" 5 shot group..
Owner: 243AI - 02
Rifle: Remington 700
Barrel length: Shilen 25" #3 contour 1-10 twist
Primer: WLR
Cases: Winchester
Maximum Case Length:
OAL:
|
fps |
||||
H4895 |
gr. |
None of the loads tried using the 60gr Sierra bullet showed any promise. 1.5" 3 shot group @ 100 yards.
60gr HP Sierra - Used For Case Forming
Owner: 243AI - 20
Rifle: Winchester Model 70
Barrel length: Shilen 30" Select Match SS 1-10 twist
Primer: Fed Large Rifle Match
Cases: Hornady Frontier
Maximum Case Length:
OAL:
|
~3800 |
fps |
H414 |
45.5 |
gr. |
Load seems fairly accurate - Able to hit ground squirrels consistently at 300+ yards.
.
65gr Shilen HP BR - Used For Case Forming
Owner: 243AI - 38
Rifle: Remington 700 S/S
Barrel length: Shilen 26
½" Select Match SS, #8 contour, 1-14 twistPrimer: Rem 9
½Cases: Winchester
Maximum Case Length:
OAL: 2.662 (set to the lans)
|
? |
fps |
BL-C(2) |
41.5 |
gr. |
.299" 5 shot group..
Owner: 243AI - 38
Rifle: Remington 700 S/S
Barrel length: Shilen 26
½" Select Match SS, #8 contour, 1-14 twistPrimer: Rem 9
½Cases: Winchester
Maximum Case Length:
OAL: 2.662 (set to the lans)
|
? |
fps |
XMR4064 |
41.3 |
gr. |
.319" 5 shot group..
Owner: 243AI - 31
Rifle: Dogtown HB Varmint Rifle
Barrel length: Hart 27" Match Grade 1.2" contour ?? twist
Primer: CCI BR
Cases: Winchester
Maximum Case Length:
OAL:
|
3646 |
fps |
Varget |
42.0 |
gr. |
Groups sizes where as follows (All groups 3 @ 100 yards):
42.0 - .750"
3525 |
3633 |
fps |
|
IMR4895 |
40.0 |
41.5 |
gr. |
Groups sizes where as follows (All groups 3 @ 100 yards):
40.0 - .400"
41.5 - .200"
3925 |
fps |
|
VN160 |
52.5 |
gr. |
Groups sizes where as follows (All groups 3 @ 100 yards):
52.5 - .250"
Other Comments:
No luck with Sierra 60 gr. - grouped agound 1".
Tried early production 58 gr. and 65 gr. Vmax - neither would group consistently.
The 55 gr. are very good out to 500+ yards - Berger 68’s are good for another couple hundred yards.
70gr Hornady SPSX - Moly (Neco Process) - Used For Case Forming
Owner: 243AI - 18
Rifle: Custom Sako
Barrel length: Douglas 26" SS Custom contour 1-10 twist
Primer: Rem 9
½Cases: Rem
Maximum Case Length:
OAL: 2.722" Seated into lands
|
3302 |
fps |
Norma 15 |
51.0 |
gr. |
70gr Speer TNT - Used For Case Forming
Owner: 243AI - 38
Rifle: Remington 700 S/S
Barrel length: Shilen 26
½" Select Match SS, #8 contour, 1-14 twistPrimer: Rem 9
½Cases: Winchester
Maximum Case Length:
OAL: 2.668 (set to the lans)
|
? |
fps |
IMR 4064 |
41.1 |
gr. |
.100" 5 shot group.
? |
fps |
|||
XMR4064 |
40.6 |
gr. |
0.262 Avg for three 5 shot groups @ 100 yards for XMR (Accurate XMR).
Owner: 243AI - 32
Rifle: Harris Gunworks
Barrel length: Pac Nor 26" 1-? twist
Primer: Rem
Cases: Rem
Maximum Case Length:
OAL: 2.647"
|
3551 |
3651 |
3735 |
3818 |
3892 |
3930 |
Fps |
H414 |
47.0 |
48.0 |
49.0 |
50.0 |
51.0 |
52.0 |
Gr. |
Owner: 243AI - 32
Rifle: Harris Gunworks
Barrel length: Pac Nor 26" 1-? twist
Primer: Rem
Cases: Rem
Maximum Case Length:
OAL: 2.620"
|
3584 |
3612 |
3683 |
3736 |
3800 |
Fps |
Varget |
42.0 |
43.0 |
44.0 |
45.0 |
46.0 |
Gr. |
70gr Nosler BT Moly - Used for Case Forming
Owner: 243AI - 37
Rifle: Rem 700 VLS
Barrel length: 26" Remington, 1-10 twist
Primer: WLR
Cases: Winchester
Maximum Case Length:
OAL: 3.288" (Using Stony Point gauge)
|
3405 |
3399 |
3458 |
3508 |
fps |
Varget |
42.0 |
42.5 |
43.1 |
43.7 |
gr. |
Accuracy:
42.0gr. -> ~.75"
42.5gr. -> ~.8"
43.1gr. -> ~.5"
Owner: 243AI - 12a
Rifle: Custom Remington 700
Barrel length: Remington 25.25" Heavy Varmint contour 1-9.125 twist
Primer: Fed Match M
Cases: 6mm Rem
Maximum Case Length: 2.061 - 2.066
OAL: .005" off lands
|
3200 |
fps |
IMR 4350 |
46.0 |
gr. |
|
3638 |
fps |
H414 |
50.0 |
gr. |
Owner: 243AI - 06
Rifle: Remington 700 action
Barrel length: Shilen 27" 1-10 twist
Primer: WLR
Cases: Winchester
Maximum Case Length:
OAL:
|
3700 |
fps |
H414 |
49.5 |
gr. |
.35" avg. group size of 5, 5 shot groups.
|
3600 |
fps |
IMR 4895 |
42.0 |
gr. |
.50" avg. group size of 5, 5 shot groups
70gr Nosler Ballistics Tip - Used for Case Forming
Owner: 243AI - 38
Rifle: Remington 700 S/S
Barrel length: Shilen 26
½" Select Match SS, #8 contour, 1-14 twistPrimer: Rem 9
½Cases: Winchester
Maximum Case Length:
OAL: 2.668 (set to the lans)
|
? |
fps |
||
XMR4064 |
|
40.6 |
|
|
0.439 Avg for three 5 shot groups @ 100 yards.
Owner: 243AI - 02
Rifle: Remington 700
Barrel length: Shilen 25" #3 contour 1-10 twist
Primer: WLR
Cases: Winchester
Maximum Case Length:
OAL: 2.610
|
? |
fps |
||
H4895 |
41.0 |
gr. |
Using 41.0gr of H4895 average group size is 1.0" 3 shots @ 100 yards.
OAL: 2.670
3572 |
3611 |
3668 |
3731 |
fps |
|
IMR4350 |
47.0 |
47.5 |
48.0 |
48.5 |
gr. |
Using 48.5gr of IMR4350 average group size is .75" 3 shots @ 100 yards.
Owner: 243AI - 20
Rifle: Winchecter Model 70 Heavy Varmint
Barrel length: Shilen 30" Select Match SS 1-10 twist
Primer: Fed Large Rifle Match
Cases: Hornady Frontier
Maximum Case Length:
OAL:
|
3498 |
3614 |
3642 |
3703 |
3757 |
3771 |
3826 |
fps |
H414 |
46.0 |
46.5 |
47.0 |
47.5 |
48.0 |
48.5 |
49.0 |
gr. |
49.0 gr. of H414 showed pressure signs.
Owner: 243AI - 32
Rifle: Harris Gunworks
Barrel length: Pac Nor 26" 1-? twist
Primer: Rem
Cases: Rem
Maximum Case Length:
OAL: 2.530"
|
3486 |
3579 |
3651 |
3736 |
Fps |
H414 |
46.0 |
47.0 |
48.0 |
49.0 |
Gr. |
|
3503 |
3582 |
3650 |
3748 |
Fps |
Varget |
42.0 |
43.0 |
44.0 |
45.0 |
Gr. |
Owner: 243AI - 32
Rifle: Harris Gunworks
Barrel length: Pac Nor 26" 1-? twist
Primer: Rem
Cases: Rem
Maximum Case Length:
OAL: 2.590"
|
3546 |
3615 |
3693 |
3761 |
Fps |
H414 |
47.0 |
48.0 |
49.0 |
50.0 |
Gr. |
|
3567 |
3616 |
3669 |
3703 |
Fps |
Varget |
42.0 |
43.0 |
44.0 |
45.0 |
Gr. |
Best groups were using 50.0gr. of H414, .6" 5 shot @100 yards.
80gr Remington PLHP - Used For Case Forming
Owner: 243AI - 14
Rifle: Remington 700 BDL Varmint
Barrel length: Remington 24" Heavy contour ?? twist
Primer:
Cases: Remington
Maximum Case Length:
OAL:
|
?? |
fps |
Unique |
12.0 |
gr. |
Bullets are seated hard into the lands to eliminate headspace problems during the fire forming process.
Owner: 243AI - 32
Rifle: Harris Gunworks
Barrel length: Pac Nor 26" 1-? twist
Primer: Rem
Cases: Rem
Maximum Case Length:
OAL: 2.600"
|
3488 |
3526 |
3589 |
3668 |
Fps |
H414 |
47.0 |
48.0 |
49.0 |
50.0 |
Gr. |
Owner: 243AI - 01
Rifle: Custom Mauser M98
Barrel length: Shilen 26" #5 contour 1-10 twist
Primer: CCI BR-2
Cases: Winchester
Maximum Case Length: 2.045"
OAL: 2.71"
|
3455 |
3548 |
3640 |
3661 |
fps |
RL22 |
50.0 |
51.0 |
52.0 |
53.0 |
gr. |
|
3042 |
3144 |
3181 |
3313 |
3376 |
fps |
IMR4350 |
42.0 |
43.0 |
44.0 |
45.0 |
46.0 |
gr. |
|
3222 |
fps |
Varget |
38.0 |
gr. |
To date the load development using RL22 looks promising. Additional work is needed with IMR4350 as velocities are not at the level I would like to see them. Varget will also be investigated further as the single load that was tested gave a Std Dev of 9.8fps for the 5 shots fired which was the lowest Std Dev so far in my testing. The best groups so far used RL22 but the single Varget load tested was a very close second. 52.0gr of RL22 is MAXIMUM in my rifle, See letter to and from HANDLOADER MAGAZINE in the "OTHER RELATED INFORMATION" section of this document.
Best group was using 51.0 of RL22 (~.95" 5 shots @ 100 yards).
80gr Sierra SBT Blitz - Moly (Midway)
Owner: 243AI - 01
Rifle: Custom Mauser M98
Barrel length: Shilen 26" #5 contour 1-10 twist
Primer: CCI BR-2
Cases: Winchester
Maximum Case Length: 2.045"
OAL: 2.300" Ogive
|
3475 |
? |
fps |
RL-19 |
48.0 |
49.0 |
gr. |
|
? |
3658 |
fps |
IMR4350 |
47.0 |
48.0 |
gr. |
|
? |
3325 |
fps |
Varget |
39.0 |
40.0 |
gr. |
Most accurate load was 40.0 gr. of Varget @ .782" with a Std Dev. for Velocity of 8 fps.
? indicates velocity was not recorded as the light conditions caused Chrony to Malfunction.
Owner: 243AI - 01
Rifle: Custom Mauser M98
Barrel length: Shilen 26" #5 contour 1-10 twist
Primer: CCI BR-2
Cases: Winchester
Maximum Case Length: 2.045"
OAL: 2.745"
|
fps |
||
RL22 |
51.0 |
52.0 |
gr. |
OAL: 2.315" Ogive
|
3293 |
3337 |
3405 |
fps |
Varget |
39.0 |
40.0 |
41.0 |
gr. |
|
3355 |
3376 |
3412 |
fps |
H380 |
43.0 |
44.0 |
45.0 |
gr. |
|
3480 |
3583 |
fps |
IMR 4350 |
47.0 |
48.0 |
gr. |
|
3468 |
3519 |
fps |
RL-19 |
48.0 |
49.0 |
gr. |
Best group .77" (5 shot @ 100 yards) was using 51.0gr of RL-22.
Owner: 243AI - 01
Rifle: Custom Mauser M98
Barrel length: Shilen 26" #5 contour 1-10 twist
Primer: CCI BR-2
Cases: Winchester
Maximum Case Length: 2.045"
OAL: 2.715"
|
3493 |
3611 |
3684 |
fps |
RL22 |
50.0 |
51.0 |
52.0 |
gr. |
Best group ..225" (5 shot @ 100 yards) was using 51.0gr of RL-22 and fitted neck cases supplied by Fred M.
80gr Hornady FMJ - Moly (Neco Process)
Owner: 243AI - 18
Rifle: Custom Sako
Barrel length: Douglas 26" SS Custom contour 1-10 twist
Primer: Rem 9
½Cases: Lapua
Maximum Case Length: 51mm
OAL: 68mm
|
|
? |
fps |
|
VN560 |
46.0 |
50.5 |
51.0 |
gr. |
No velocity data is available for these loads at this time.
Best group was using 50.5gr of VN560 (~.45" 5 shots @ 100 m)
Owner: 243AI - 14
Rifle: Custom Sako
Barrel length: Douglas 26" SS Custom contour 1-10 twist
Primer: 9
½Cases: Lapua
Maximum Case Length: 51mm
OAL: 68mm
|
|
|
|
fps |
VN160 |
|
|
|
gr. |
None of the loads tried using the 85gr Barnes bullet and VN160 showed any promise
Owner: ronhbr@cableone.netF
Rifle: F.N. Mauser BR action 26" barrel
Barrel length: 26" 1-?? twist
Primer: Fed 215
Cases: Win
Maximum Case Length:
OAL:
|
|
3480 |
|
fps |
H4831sc |
|
51.0 |
|
gr. |
Owner: 243AI - 21
Rifle: FN Mauser BR action
Barrel length: Hart 26" ?? twist
Primer: Fed 215
Cases: Winchester
Maximum Case Length:
OAL:
|
3530 |
fps |
RL-22 |
50.5 |
gr. |
Group size " Conditions: Temperature 45 degrees F, Wind switching 5-10 MPH, Sky Partly cloudy
Owner: 243AI - 01
Rifle: Custom Mauser M98
Barrel length: Shilen 26" #5 contour 1-10 twist
Primer: CCI BR-2
Cases: Winchester
Maximum Case Length: 2.045"
OAL: 2.715"
|
3537 |
? |
fps |
RL22 |
50.0 |
51.0 |
gr. |
Best group .955" (5 shot @ 100 yards) was using 51.0gr of RL-22.
? indicates velocity was not recorded as the light conditions caused Chrony to Malfunction.
Owner: 243AI - 34
Rifle: Whitworth Mark X, Mauser Action
Barrel length: 24" #2 Contour, 1-10 twist
Primer: Fed 215M
Cases: Winchester
Maximum Case Length:
OAL: 2.65"
|
3150 |
3210 |
fps |
RL 19 |
49.0 |
50.0 |
gr. |
Accuracy is running about .5"
Owner: 243AI - 06
Rifle: Remington 700 action
Barrel length: 27" Shelin 1-10 twist
Primer: WLR
Cases: Winchester
Maximum Case Length:
OAL:
|
3200 |
fps |
V160 |
44.0 |
gr. |
.40" avg. group size of 5, 5 shot groups.
A word of caution about V160, pressure was monitored by measuring head expansion on the brass and after expanding 1 to 2 thousandths no further expansion was noted and no other pressure signs showed up until primers started blowing and cases started splitting. 46.0gr of V160 expanded the case head 1.5 thousandths, after 5 reloadings cases started to split and primers started to blow.
Owner: 243AI - 12a
Rifle: Custom Remington 700
Barrel length: Remington 25.25" Heavy Varmint contour 1-9.125 twist
Primer: Fed Match M
Cases: 6mm Rem
Maximum Case Length: 2.061 - 2.066
OAL: 2.743
|
3210 |
fps |
IMR 4350 |
47.0 |
gr. |
Owner: 243AI - 12a
Rifle: Custom Remington 700
Barrel length: Remington 25.25" Heavy Varmint contour 1-9.125 twist
Primer: Fed Match M
Cases: 6mm Rem
Maximum Case Length: 2.061 - 2.066
OAL: .005" off lands
|
3022 |
fps |
RL -22 |
48.0 |
gr. |
|
3070 |
fps |
IMR 4350 |
45.0 |
gr. |
|
3115 |
fps |
IMR 4831 |
47.0 |
gr. |
|
2968 |
fps |
H4831 |
47.0 |
gr. |
None of the Branes loads produced satisfactory accuracy, up to 2.0" at 112 yards.
Owner: 243AI - 12a
Rifle: Custom Remington 700
Barrel length: Remington 25.25" Heavy Varmint contour 1-9.125 twist
Primer: Fed Match M
Cases: 6mm Rem
Maximum Case Length: 2.061 - 2.066
OAL: Touching lands
|
3056 |
fps |
RL -22 |
48.0 |
gr. |
Owner: 243AI - 06
Rifle: Remington 700 action
Barrel length: 27" Shelin 1-10 twist
Primer: WLR
Cases: Winchester
Maximum Case Length:
OAL:
|
? |
fps |
V160 |
48.5 |
gr. |
After 3 reloadings cases split and primers blew.
.75" avg. group size of 5, 5 shot groups.
95gr Nosler BT - Moly - Used for Case Forming
Owner: 243AI - 12
Rifle: Rem 700 VS
Barrel length: SS
Primer: WLR
Cases: Winchester
Maximum Case Length:
OAL: Kissing lands
|
2781 |
2795 |
2833 |
2869 |
fps |
W760 |
39.5 |
40.0 |
40.5 |
41.0 |
gr. |
39.5 - 40.5gr gave slightly round shoulder edges, some neck smudging.
41.0gr. gave a nice shoulder.
Accuracy:
39.5gr. -> .757"
40.0gr. -> .477"
40.5gr. -> 1.415"
2700 |
2737 |
2774 |
? |
2870 |
2902 |
2927 |
fps |
|
Varget |
34.5 |
35.0 |
35.5 |
36.0 |
36.5 |
37.0 |
37.5 |
gr. |
3010 |
3017 |
3055 |
3055 |
3082 |
3156 |
3172 |
3193 |
fps |
|
RL19 |
45.5 |
46.0 |
46.5 |
47.0 |
47.5 |
48.0 |
48.5 |
49.0 |
gr. |
48.5gr. load of RL19 works VERY well.
95gr Nosler Silver Tip - Moly Coated
Owner: 243AI - 12a
Rifle: Custom Remington 700
Barrel length: Remington 25.25" Heavy Varmint contour 1-9.125 twist
Primer: Fed Match M
Cases: 6mm Rem
Maximum Case Length: 2.061 - 2.066
OAL: .005" off lands
|
3100 |
fps |
RL-19 |
47.0 |
gr. |
Owner: 243AI - 02
Rifle: Remington 700
Barrel length: Shilen 25" #3 contour 1-10 twist
Primer: WLR
Cases: Winchester
Maximum Case Length:
OAL: 2.720"
3220 |
3310 |
Fps |
|
IMR4350 |
44.0 |
45.0 |
Gr. |
3225 |
3398 |
Fps |
|
RL 22 |
48.0 |
49.0 |
Gr. |
3351 See Note 1 |
Fps |
|
RL 22 |
48.0 |
Gr. |
More bench shooting with these loads is needed.
Note 1: This load used Federal 215 primers.
95gr Nosler Ballistic Tip - FASTEX coated
Owner: mkw@varminthunters.com
Rifle:
Barrel length:
Primer:
Cases:
Maximum Case Length:
OAL:
|
3111 |
3124 |
3173 |
Fps |
RL 22 |
46.0 |
46.5 |
47.0 |
Gr. |
100gr Hornady SP - Used For Case Forming
Owner: 243AI - 12a
Rifle: Custom Remington 700
Barrel length: Remington 25.25" Heavy Varmint contour ?? twist
Primer:
Cases: R-P, Win Super X, 6mm Rem R-P, 6mm Rem Win Super X
Maximum Case Length: 2.075
OAL:
|
3086 |
fps |
RL -19 |
46.0 |
gr. |
Accuracy was .973 for 6 shots at 112 yards, .654 for 5 shots at 112 yards.
100gr Hornady SP - Moly Coated
Owner: 243AI - 12a
Rifle: Custom Remington 700
Barrel length: Remington 25.25" Heavy Varmint contour 1-9.125 twist
Primer: Fed Match M
Cases: 6mm Rem
Maximum Case Length: 2.061 - 2.073
OAL: .005" off lands
|
3175 |
fps |
RL -22 |
50.0 |
gr. |
NOTE: VERSION 4.0 incorrectly stated that this load was using RL-19.
Maximum Case Length: 2.061 - 2.066
OAL: 2.738"
|
3185 |
fps |
IMR 4350 |
47.0 |
gr. |
|
3120 |
fps |
RL-22 |
49.0 |
gr. |
Accuracy was .502" using the RL-19 load, no further load experimenting will be done with this bullet. Will used this load for deer hunting
Owner: 243AI - 18
Rifle: Custom Sako
Barrel length: Douglas 26" SS Custom contour 1-10 twist
Primer: 9
½Cases: Lapua
Maximum Case Length: 51mm
OAL: 68mm
|
|
|
|
fps |
VN560 |
|
|
|
gr. |
Loads using the 100gr Sierra and VN560 looked promising.
Owner: h.eller@kabsi.at
Rifle: Rem 788
Barrel length: a 26" Douglas premium 1 in 7" twist
Primer: CCI BR-2
Cases: Lapua or RP
Maximum Case Length:
OAL:
|
3320 |
3390 |
|
fps |
VN560 |
48.0 |
49.0 |
|
gr. |
49.0gr is MAX
|
3340 |
|
|
fps |
H1000 |
50.0 |
|
|
gr. |
This load is too HOT!
|
3430 |
|
|
fps |
IMR7828 |
50.0 |
|
|
gr. |
This load is too HOT!
100gr Winchester PSP - Used for Case Forming
Owner: 243AI - 01
Rifle: Custom Mauser M98
Barrel length: Shilen 26" #5 contour 1-10 twist
Primer: CCI 200
Cases: Winchester
Maximum Case Length: 2.045"
OAL: 2.65"
|
See Note 1 |
fps |
IMR4350 |
40.6 |
gr. |
Note 1. This load was used for fire forming and velocity and group size were not measured.
100gr Winchester PSP - Used for Case Forming
Owner: 243AI - 09
Rifle: Custom Remington 700
Barrel length: Shilen 27" #5.5 contour 1-8 twist (.270" neck)
Primer: Winchester WLR
Cases: Winchester
Maximum Case Length: 2.045"
OAL: 2.65"
|
See Note 1 |
fps |
IMR4227 |
25.0 |
gr. |
Note 1. This load was used for fire forming and velocity was not measured.
Accuracy was 3" - 4" @ 100 yards.
|
See Note 1 |
fps |
IMR3031 |
33.0 |
gr. |
Note 1. This load was used for fire forming and velocity was not measured.
Accuracy was ~1.0" for 3 shots @ 100 yards.
100gr Winchester PSP-Moly (Midway)-Used for Case Forming
Owner: 243AI - 01
Rifle: Custom Mauser M98
Barrel length: Shilen 26" #5 contour 1-10 twist
Primer: CCI 200
Cases: Winchester
Maximum Case Length: 2.045"
OAL: 2.735"
|
See Note 1 |
fps |
IMR4350 |
40.6 |
gr. |
Note 1. This load was used for fire forming and velocity were not measured. Group Size is about 1.5 to 2 ".
Owner: 243AI - 02
Rifle: Remington 700
Barrel length: Shilen 25" #3 contour 1-10 twist
Primer: WLR
Cases: Winchester
Maximum Case Length:
OAL: 2.769"
|
3033 |
3098 |
3196 |
Fps |
IMR4350 |
42.0 |
43.0 |
44.0 |
Gr. |
All shot less then 1" but more bench shooting with these loads is needed.
Owner: h.eller@kabsi.at
Rifle: Rem 788
Barrel length: a 26" Douglas premium 1 in 7" twist
Primer: CCI BR-2
Cases: Lapua or RP
Maximum Case Length:
OAL:
|
3075 |
|
|
fps |
H414 |
44.0 |
|
|
gr. |
|
2890 |
|
|
fps |
H1000 |
48.5 |
|
|
gr. |
|
3000 |
|
|
fps |
IMR7828 |
47.5 |
|
|
gr. |
The following data is all for the rifle listed here.
The grey area in the bullet column indicates MOLY bullets.
Owner: singleshot@vernonia.com
Rifle: Rem 700 Long action
Barrel length: Pac-Nor or Schnieder 26" 1:10 twist
Primer:
Cases:
Maximum Case Length:
OAL:
.243 Ackley Improved/Pac-Nor barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
Nosler 55 |
2.67 |
IMR 4064 |
45.3 |
3983 |
34 |
1.60 |
|||
Nosler 55 |
2.67 |
IMR 4064 |
45.5 |
4002 |
49 |
0.62 |
|||
Nosler 55 |
2.67 |
IMR 4064 |
45.7 |
4006 |
40 |
1.22 |
|||
Nosler 55 |
2.67 |
IMR 4320 |
45.3 |
3853 |
79 |
0.95 |
|||
Nosler 55 |
2.67 |
IMR 4320 |
45.5 |
3867 |
51 |
1.33 |
|||
Nosler 55 |
2.67 |
IMR 4320 |
45.7 |
3908 |
23 |
0.87 |
|||
Nosler 55 |
2.67 |
H 414 |
52.3 |
4052 |
84 |
1.03 |
|||
Nosler 55 |
2.67 |
H 414 |
52.5 |
4172 |
14 |
0.90 |
|||
Nosler 55 |
2.67 |
H 414 |
52.7 |
4058 |
160 |
1.38 |
|||
Nosler 55 |
2.67 |
H 414 |
52.9 |
4206 |
34 |
1.80 |
|||
Nosler 55 |
2.67 |
H 414 |
52.4 |
4074 |
15 |
0.35 |
Oil in Barrel |
||
Nosler 55 |
2.67 |
H 414 |
52.5 |
4077 |
77 |
0.74 |
|||
Nosler 55 |
2.67 |
H 414 |
52.6 |
4093 |
28 |
1.46 |
.243 Ackley Improved/Pac-Nor barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
VMAX 58 |
2.61 |
H 414 |
50.6 |
3992 |
25 |
0.85 |
Oil in Barrel |
||
VMAX 58 |
2.61 |
H 414 |
50.8 |
4031 |
18 |
1.46 |
|||
VMAX 58 |
2.61 |
H 414 |
51.0 |
4001 |
36 |
0.93 |
|||
VMAX 58 |
2.61 |
H 414 |
51.2 |
4043 |
18 |
1.19 |
Oil in Barrel |
||
VMAX 58 |
2.61 |
H 414 |
51.4 |
4121 |
31 |
1.18 |
|||
VMAX 58 |
2.61 |
H 414 |
51.6 |
4090 |
30 |
0.60 |
Oil/ Flyer |
||
VMAX 58 |
2.61 |
H 414 |
51.8 |
4136 |
10 |
0.82 |
|||
VMAX 58 |
2.61 |
H 414 |
52.0 |
4175 |
38 |
1.06 |
|||
VMAX 58 |
2.61 |
H 414 |
52.2 |
4191 |
23 |
1.31 |
Oil in Barrel |
||
VMAX 58 |
2.61 |
H 414 |
52.4 |
4209 |
13 |
1.31 |
|||
VMAX 58 |
2.61 |
C 1730 |
45.0 |
3705 |
29 |
1.12 |
|||
VMAX 58 |
2.61 |
C 1730 |
45.3 |
3695 |
16 |
0.96 |
|||
VMAX 58 |
2.61 |
C 1730 |
45.6 |
3669 |
22 |
1.48 |
Oil in Barrel |
||
VMAX 58 |
2.61 |
C 1730 |
45.9 |
3728 |
16 |
1.06 |
|||
VMAX 58 |
2.61 |
C 1730 |
46.2 |
3722 |
39 |
1.06 |
|||
VMAX 58 |
2.61 |
H 414 |
51.6 |
4038 |
14 |
0.60 |
Oil in Barrel |
||
VMAX 58 |
2.61 |
H 414 |
51.7 |
4054 |
29 |
1.06 |
|||
VMAX 58 |
2.61 |
H 414 |
51.8 |
4076 |
10 |
0.77 |
|||
VMAX 58 |
2.61 |
H 414 |
51.9 |
4071 |
16 |
1.44 |
.243 Ackley Improved/Pac-Nor barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
Nosler 70 |
2.67 |
H 414 |
47.3 |
3567 |
21 |
1.70 |
Oil in Barrel |
||
Nosler 70 |
2.67 |
H 414 |
47.5 |
3544 |
28 |
1.50 |
Oil in Barrel |
||
Nosler 70 |
2.67 |
H 414 |
47.7 |
3594 |
24 |
0.89 |
|||
Nosler 70 |
2.67 |
Varget |
41.8 |
3480 |
22 |
1.50 |
Oil in Barrel |
||
Nosler 70 |
2.67 |
Varget |
42.0 |
3506 |
13 |
1.50 |
|||
Nosler 70 |
2.67 |
Varget |
42.2 |
3538 |
12 |
1.50 |
|||
Nosler 70 |
2.67 |
Varget |
42.4 |
3527 |
18 |
1.50 |
Oil in Barrel |
.243 Ackley Improved/Pac-Nor barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
VMAX 75 |
2.6 |
H4831SC |
47.0 |
3301 |
8 |
0.56 |
Oil in Barrel |
||
VMAX 75 |
2.6 |
H4831SC |
47.5 |
3343 |
15 |
0.44 |
|||
VMAX 75 |
2.6 |
H4831SC |
48.0 |
3343 |
31 |
0.82 |
|||
VMAX 75 |
2.6 |
H4831SC |
48.5 |
3392 |
6 |
0.84 |
|||
VMAX 75 |
2.6 |
H4831SC |
49.0 |
3461 |
138 |
0.78 |
|||
VMAX 75 |
2.6 |
IMR4064 |
39.5 |
3384 |
17 |
0.74 |
Oiled Barrel |
||
VMAX 75 |
2.6 |
IMR4064 |
40.0 |
3449 |
27 |
0.75 |
|||
VMAX 75 |
2.6 |
IMR4064 |
40.5 |
3449 |
22 |
0.65 |
|||
VMAX 75 |
2.6 |
IMR4064 |
41.0 |
3474 |
22 |
0.87 |
|||
VMAX 75 |
2.6 |
IMR4064 |
41.5 |
3554 |
13 |
1.34 |
|||
VMAX 75 |
2.6 |
VARGET |
40.0 |
3331 |
18 |
0.84 |
Oiled Barrel |
||
VMAX 75 |
2.6 |
VARGET |
40.5 |
3378 |
8 |
0.95 |
|||
VMAX 75 |
2.6 |
VARGET |
41.0 |
3429 |
8 |
1.32 |
|||
VMAX 75 |
2.6 |
VARGET |
41.5 |
3429 |
8 |
1.11 |
|||
VMAX 75 |
2.6 |
VARGET |
42.0 |
3481 |
14 |
1.24 |
|||
VMAX 75 |
2.6 |
H4350 |
47.0 |
3559 |
10 |
0.51 |
Oiled Barrel |
||
VMAX 75 |
2.6 |
H4350 |
47.5 |
3611 |
14 |
0.59 |
|||
VMAX 75 |
2.6 |
H4350 |
48.0 |
3690 |
14 |
1.08 |
|||
VMAX 75 |
2.6 |
H4350 |
48.5 |
3726 |
11 |
0.70 |
|||
VMAX 75 |
2.6 |
H4350 |
49.0 |
3768 |
15 |
0.41 |
.243 Ackley Improved/Pac-Nor barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
VMAX 87 |
2.43 |
IMR 4350 |
42.9 |
3064 |
21 |
1.04 |
|||
VMAX 87 |
2.43 |
IMR 4350 |
43.2 |
3074 |
37 |
0.74 |
|||
VMAX 87 |
2.43 |
IMR 4350 |
43.5 |
3126 |
31 |
0.90 |
|||
VMAX 87 |
2.43 |
IMR 4350 |
43.8 |
3117 |
31 |
0.62 |
|||
VMAX 87 |
2.43 |
IMR 4350 |
44.1 |
3196 |
25 |
0.82 |
|||
VMAX 87 |
2.43 |
IMR 4350 |
44.4 |
3207 |
25 |
1.08 |
|||
VMAX 87 |
2.43 |
IMR 4350 |
44.7 |
3239 |
14 |
0.66 |
|||
VMAX 87 |
2.43 |
IMR 4350 |
45.0 |
3217 |
13 |
0.92 |
|||
VMAX 87 |
2.43 |
IMR 4350 |
45.3 |
3273 |
15 |
0.87 |
|||
VMAX 87 |
2.43 |
IMR 4350 |
45.6 |
3284 |
11 |
1.22 |
|||
.243 Ackley Improved/Pac-Nor barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
VMAX 87 |
2.474 |
H 414 |
40.0 |
2926 |
62 |
0.76 |
|||
VMAX 87 |
2.474 |
H 414 |
40.5 |
3021 |
33 |
0.53 |
|||
VMAX 87 |
2.474 |
H 414 |
41.0 |
3035 |
23 |
1.05 |
|||
VMAX 87 |
2.474 |
H 414 |
41.5 |
3079 |
47 |
0.88 |
|||
VMAX 87 |
2.474 |
H 414 |
42.0 |
3111 |
16 |
0.61 |
|||
VMAX 87 |
2.474 |
H 414 |
42.5 |
3130 |
34 |
1.01 |
|||
VMAX 87 |
2.474 |
H 414 |
43.0 |
3157 |
52 |
0.76 |
4 = .206 |
||
VMAX 87 |
2.474 |
H 414 |
43.5 |
3185 |
12 |
0.59 |
|||
VMAX 87 |
2.474 |
H 414 |
44.0 |
3208 |
18 |
0.34 |
|||
VMAX 87 |
2.474 |
H 414 |
44.5 |
3258 |
39 |
0.73 |
.243 Ackley Improved/ Break in Schneider Barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
87gr hpbt |
2.522 |
H 414 |
44.3 |
3226 |
13 |
0.87 |
5/clean |
||
87gr hpbt |
2.522 |
H 414 |
44.5 |
3180 |
8 |
2.19 |
5/clean |
||
87gr hpbt |
2.522 |
H 414 |
44.7 |
3258 |
18 |
1.26 |
5/clean |
||
87gr hpbt |
2.522 |
H 414 |
44.9 |
3253 |
26 |
1.14 |
shoot 10 |
||
87gr hpbt |
2.522 |
H 414 |
45.1 |
3290 |
15 |
0.68 |
4 in .150" |
||
.243 Ackley Improved Schneider Barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
87gr hpbt |
2.414 |
H 414 |
44.7 |
3211 |
17 |
0.85 |
|||
87gr hpbt |
2.414 |
H 414 |
44.8 |
3225 |
6 |
0.85 |
|||
87gr hpbt |
2.414 |
H 414 |
44.9 |
3226 |
18 |
0.95 |
|||
87gr hpbt |
2.414 |
H 414 |
45.0 |
3254 |
25 |
1.03 |
|||
87gr hpbt |
2.414 |
H 414 |
45.1 |
3243 |
17 |
1.09 |
|||
87gr hpbt |
2.414 |
H 414 |
45.2 |
3282 |
14 |
0.74 |
|||
87gr hpbt |
2.414 |
H 414 |
45.3 |
3290 |
30 |
1.17 |
|||
87gr hpbt |
2.414 |
H 414 |
45.4 |
3315 |
19 |
1.09 |
|||
87gr hpbt |
2.414 |
H 414 |
45.5 |
3286 |
27 |
1.07 |
|||
87gr hpbt |
2.414 |
H 414 |
45.6 |
3303 |
15 |
1.48 |
.243 Ackley Improved Schneider Barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
87gr hpbt |
2.416 |
H 4831 |
46.0 |
3013 |
34 |
0.72 |
3 shot grps |
||
87gr hpbt |
2.416 |
H 4831 |
46.3 |
3061 |
20 |
0.31 |
3 shot grps |
||
87gr hpbt |
2.416 |
H 4831 |
46.6 |
3074 |
3 |
0.62 |
3 shot grps |
||
87gr hpbt |
2.416 |
H 4831 |
46.9 |
3114 |
17 |
0.47 |
3 shot grps |
||
87gr hpbt |
2.416 |
H 4831 |
47.2 |
3152 |
11 |
0.53 |
CleanBarrel |
||
87gr hpbt |
2.416 |
H 4831 |
47.5 |
3156 |
9 |
0.89 |
3 shot grps |
||
87gr hpbt |
2.416 |
H 4831 |
47.8 |
3218 |
17 |
0.49 |
3 shot grps |
||
87gr hpbt |
2.416 |
H 4831 |
48.1 |
3218 |
21 |
0.55 |
3 shot grps |
||
87gr hpbt |
2.416 |
H 4831 |
48.4 |
3223 |
40 |
0.57 |
3 shot grps |
||
87gr hpbt |
2.416 |
H 4831 |
48.7 |
3243 |
3 |
0.43 |
3 shot grps |
||
87gr hpbt |
2.416 |
H 4831 |
49.0 |
3279 |
19 |
0.27 |
3 shot grps |
||
87gr hpbt |
2.416 |
H 4831 |
49.3 |
3315 |
10 |
0.67 |
3 shot grps |
||
87gr hpbt |
2.416 |
H 4831 |
49.6 |
3330 |
5 |
1.15 |
3 shot grps |
||
87gr hpbt |
2.183 |
H 4831 |
48.8 |
3204 |
51 |
0.57 |
5 shot grps |
||
87gr hpbt |
2.183 |
H 4831 |
48.9 |
3252 |
14 |
0.90 |
5 shot grps |
||
87gr hpbt |
2.183 |
H 4831 |
49.0 |
3232 |
8 |
1.15 |
4 1n .67 |
||
87gr hpbt |
2.183 |
H 4831 |
49.1 |
3267 |
20 |
0.99 |
5 shot grps |
||
87gr hpbt |
2.183 |
H 4831 |
49.2 |
3261 |
17 |
0.99 |
5 shot grps |
||
.243 Ackley Improved Schneider Barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
Nosler 90 |
2.204 |
H 4831 |
46.3 |
||||||
Nosler 90 |
2.204 |
H 4831 |
46.6 |
||||||
Nosler 90 |
2.204 |
H 4831 |
46.9 |
||||||
Nosler 90 |
2.204 |
H 4831 |
47.2 |
||||||
Nosler 90 |
2.204 |
H 4831 |
47.5 |
||||||
Nosler 90 |
2.204 |
H 4831 |
47.8 |
||||||
Nosler 90 |
2.204 |
H 4831 |
48.1 |
||||||
Nosler 90 |
2.204 |
H 4831 |
48.4 |
||||||
Nosler 90 |
2.204 |
H 4831 |
48.7 |
||||||
Nosler 90 |
2.204 |
H 4831 |
49.0 |
.243 Ackley Improved/Pac-Nor barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
Nosler 95 |
2.47 |
Reload 22 |
45.5 |
2955 |
25 |
0.86 |
|||
Nosler 95 |
2.47 |
Reload 22 |
46.0 |
2989 |
18 |
1.11 |
4 in .15" |
||
Nosler 95 |
2.47 |
Reload 22 |
46.5 |
3041 |
14 |
0.70 |
|||
Nosler 95 |
2.47 |
Reload 22 |
47.0 |
3054 |
21 |
0.41 |
|||
Nosler 95 |
2.47 |
Reload 22 |
47.5 |
3102 |
12 |
0.55 |
|||
Nosler 95 |
2.47 |
Reload 22 |
48.0 |
3123 |
19 |
0.69 |
2 in 1, 3 in 1 |
||
Nosler 95 |
2.47 |
Reload 22 |
48.5 |
3162 |
19 |
0.96 |
|||
Nosler 95 |
2.47 |
Reload 22 |
49.0 |
3233 |
15 |
1.36 |
|||
Nosler 95 |
2.47 |
Reload 22 |
49.5 |
3246 |
16 |
1.48 |
|||
Nosler 95 |
2.47 |
Reload 22 |
50.0 |
3285 |
15 |
0.64 |
|||
.243 Ackley Improved/Pac-Nor barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
Nosler 95 |
2.47 |
IMR 4320 |
36.0 |
2731 |
15 |
0.67 |
|||
Nosler 95 |
2.47 |
IMR 4320 |
37.0 |
2805 |
3 |
0.51 |
|||
Nosler 95 |
2.47 |
IMR 4320 |
83.0 |
2894 |
40 |
0.85 |
|||
Nosler 95 |
2.47 |
IMR 4320 |
38.5 |
2921 |
17 |
1.34 |
|||
Nosler 95 |
2.47 |
IMR 4320 |
39.0 |
2944 |
11 |
1.21 |
|||
Nosler 95 |
2.47 |
IMR 4320 |
39.5 |
2985 |
33 |
1.34 |
|||
Nosler 95 |
2.47 |
IMR 4320 |
40.0 |
3076 |
10 |
1.11 |
|||
Nosler 95 |
2.47 |
IMR 4320 |
40.5 |
3128 |
6 |
0.72 |
|||
Nosler 95 |
2.47 |
IMR 4320 |
41.0 |
3168 |
12 |
1.09 |
|||
Nosler 95 |
2.47 |
IMR 4320 |
41.5 |
3186 |
21 |
0.69 |
.243 Ackley Improved Schneider Barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
Nosler 95 |
2.204 |
H 4831 |
46.0 |
1.12 |
|||||
Nosler 95 |
2.204 |
H 4831 |
46.2 |
3033 |
22 |
0.56 |
|||
Nosler 95 |
2.204 |
H 4831 |
46.4 |
3060 |
16 |
0.62 |
|||
Nosler 95 |
2.204 |
H 4831 |
46.6 |
3068 |
7 |
0.51 |
|||
Nosler 95 |
2.204 |
H 4831 |
46.8 |
3083 |
19 |
0.98 |
|||
Nosler 95 |
2.204 |
H 4831 |
47.0 |
3076 |
21 |
0.97 |
|||
Nosler 95 |
2.204 |
H 4831 |
47.2 |
3091 |
18 |
0.94 |
|||
Nosler 95 |
2.204 |
H 4831 |
47.4 |
3090 |
19 |
0.64 |
|||
Nosler 95 |
2.204 |
H 4831 |
47.6 |
3142 |
0.41 |
||||
Nosler 95 |
2.204 |
H 4831 |
47.8 |
3139 |
17 |
0.46 |
|||
.243 Ackley Improved/Pac-Nor barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
100 Partition |
2.48 |
H 4831 SC |
42.0 |
2838 |
17 |
1.65 |
Oil in Barrel |
||
100 Partition |
2.48 |
H 4831 SC |
42.5 |
1.05 |
|||||
100 Partition |
2.48 |
H 4831 SC |
43.0 |
2863 |
8 |
0.96 |
|||
100 Partition |
2.48 |
H 4831 SC |
43.5 |
3055 |
44 |
1.32 |
|||
100 Partition |
2.48 |
H 4831 SC |
44.0 |
3025 |
32 |
0.89 |
|||
100 Partition |
2.48 |
H 4831 SC |
44.5 |
2958 |
6 |
1.75 |
|||
100 Partition |
2.48 |
H 4831 SC |
45.0 |
2991 |
17 |
1.15 |
|||
100 Partition |
2.48 |
H 4831 SC |
45.5 |
2976 |
23 |
0.85 |
.243 Ackley Improved/Pac-Nor barrel |
|||||||||
Bullet |
OAL |
Powder |
Charge Wt. |
Average |
STDEV |
Group Size |
Comments |
||
100 Partition |
2.49 |
H 414 |
39.3 |
2784 |
22 |
1.95 |
|||
100 Partition |
2.49 |
H 414 |
39.6 |
2807 |
31 |
1.50 |
|||
100 Partition |
2.49 |
H 414 |
39.9 |
2868 |
29 |
1.08 |
|||
100 Partition |
2.49 |
H 414 |
40.2 |
2835 |
27 |
1.43 |
|||
100 Partition |
2.49 |
H 414 |
40.5 |
2869 |
19 |
1.30 |
|||
100 Partition |
2.49 |
H 414 |
40.8 |
2858 |
41 |
1.37 |
|||
100 Partition |
2.49 |
H 414 |
41.1 |
2884 |
19 |
0.55 |
|||
100 Partition |
2.49 |
H 414 |
41.4 |
2911 |
19 |
0.91 |
|||
100 Partition |
2.49 |
H 414 |
41.7 |
2877 |
29 |
1.85 |
|||
100 Partition |
2.49 |
H 414 |
42.0 |
2905 |
17 |
0.91 |
Developer Page Developer Page
|
Valley City |
ND |
USA |
243AI - 01 |
jmilender@fm-net.com |
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243AI - 02 |
|
Bob |
Stanwood |
Washington |
USA |
243AI - 03 |
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243AI - 04 |
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243AI - 05 |
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Dale |
Monticello |
UT |
USA |
243AI - 06 |
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243AI - 07 |
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243AI - 08 |
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George |
New York |
NY |
USA |
243AI - 09 |
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243AI - 10 |
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243AI - 11 |
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243AI - 12 |
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Fred |
Calgary |
Alberta |
Canada |
243AI - 12a |
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Doug |
Sunbury |
PA |
USA |
243AI - 14 |
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243AI - 15 |
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Rich |
Salina |
Kansas |
USA |
243AI - 16 |
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Tom |
Sacramento |
CA |
USA |
243AI - 17 |
|
Tore |
Trondheim |
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Norway |
243AI - 18 |
|
Bill |
Toledo |
OH |
USA |
243AI - 19 |
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243AI - 20 |
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243AI - 21 |
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243AI - 22 |
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243AI - 23 |
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Bob ( Note 1) |
Ft. Wayne |
IN |
USA |
243AI - 24 |
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243AI - 25 |
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243AI - 26 |
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243AI - 27 |
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Ty |
Hanna |
WY |
USA |
243AI - 28 |
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243AI - 29 |
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243AI - 30 |
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243AI - 31 |
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Brad |
East Troy |
WI |
USA |
243AI - 32 |
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243AI - 33 |
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243AI - 34 |
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Mike |
Eugene |
Oregon |
USA |
243AI - 35 |
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Allen |
Santaquin |
UT |
USA |
243AI - 36 |
No E-mail |
Mark |
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243AI - 37 |
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Floyd |
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|
243AI - 38 |
TolstonF@ennis.ednet10.net |
Loren |
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NV |
USA |
243AI - 39 |
No E-mail |
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243AI - 40 |
GLShooter@aol.com |
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243AI - 41 |
rtseu@sosinc.net |
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243AI - 42 |
champeau@gte.net |
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243AI - 43 |
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243AI - 44 |
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243AI - 45 |
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Note 1 - Bob (Bob Blaine) works at Sinclair International (1-219-493-1858) and has extensive experience with the 243AI.
If Your E-mail address is listed above and you would like your Name, City, State/Province, and Country added send an e-mail to jmilender@fm-net.com indicting this along with the information. If you have already sent the request and the information and your information is incorrect or missing from the table please send the information again as I probably lost or miss typed it.
Letter to Handloader Magazine OCT97
Dear Sir;
I have a question concerning the use of case expansion measurements to determine maximum pressure for a given rifle. I have used the method described in Ken Waters’ book Pet Loads to develop loads for my 243 Win and 308 Win successfully. My question is what to use as a baseline for case expansion measurements for a new rifle I had built. The rifle is a 243 Ackley Improved 40 degree, the action is a Mauser M98 with a 26" Shelin barrel. The cases used for my load development are all within 1 gr. weight and were trimmed, had the primer pocket uniformed and the flash hole deburred. They were then fire formed using 40.6 gr. of IMR4350 CCI200 primers and a 100 gr. Win PSP bullet seated to a overall length of 2.650".
The cases were then sized using a Redding 243 Ack Imp FL die set setup to insure that the shoulder of the case was not set back and loaded with a 80 gr. Sierra SBT Blitz seated to an overall length of 2.710", CCI BR-2 primer and the following powders and charges. Velocity and Case Measurement in the below chart are the average of 5 shots.
Powder |
Powder Charge (gr.) |
Velocity (fps 12’ from Muzzle) |
Std Dev (fps) |
Case Measurement (inches) |
IMR4350 (forming load) |
40.6 |
? |
? |
.4702 |
IMR4350 |
42.0 |
3042 |
33 |
.4700 |
IMR4350 |
43.0 |
3144 |
14 |
.4705 |
IMR4350 |
44.0 |
3181 |
13 |
.4704 |
IMR4350 |
45.0 |
3313 |
37 |
.4705 |
IMR4350 |
46.0 |
3376 |
23 |
.4706 |
|
|
|
|
|
Varget |
38.0 |
3222 |
10 |
.4705 |
|
|
|
|
|
RL22 |
50.0 |
3455 |
39 |
.4707 |
RL22 |
51.0 |
3548 |
15 |
.4709 |
RL22 |
52.0 |
3640 |
15 |
.4710 |
RL22 |
53.0 |
3661 |
39 |
.4711 |
None of these loads show any obvious signs of excessive pressure. I have not fired any factory 243 Win loads in this rifle yet, would it be valid to use the expansion of the factory loads as my baseline even if I am forming the case when it is fired? Any suggestions on what to use as a baseline measurement for case expansion would be appreciated. Also what level over baseline would be considered wise given the action used and the caliber? If you should need any further information I can be contacted as listed below.
Thank you for your assistance and keep up the good job.
Jeff Milender
E-mail jmilender@fm-net.com
Reply from Handloader Magazine - Ken Waters
(This letter is a retyped copy of the letter received from Ken Waters)
Dear Mr. Milender:
You are of course correct in pointing to the difficulty of determining a baseline for case expansion measurements with a wildcat or an "Improved" chamber rifle since you are thus unable to use factory cartridges as a basis.
As I explained in the chapter "Developing Pet Loads", it isn’t proper to predicate case expansion measurements on factory loads fire-formed in an Improved case and chamber, A portion of the pressure developed having been expended in forming a case to fit the chamber.
Accordingly, with a wildcat or Improved chamber, it is necessary to fire a series of rounds with the same bullet but increase powder charges, using same make cases which have been fire-formed in that rifle, recording loads, chronographed velocities and expansion ring measurements to form a chart, precisely as you have done with 80-gr. Sierra in your .243 Ackley Improved rifle.
Studying that chart, I look first for break-over points. Note that with your loads producing velocities of 3100 - to - 3300 - fps, case base diameter increased from .4704" to .4705" - a logical progression- but at 3376 -fps the reading was .4706" beginning an upward climb to .4707" at 3455 -fps, .4709" at 3548, .4710 at 3640, and .4711" at 3661.
This would indicate the break-over point to be .4705" base expansion in concert with an instrumental velocity of around 3300 -fps. Considering that as the baseline you seek, your heaviest load shows an increase of .0006".
Now some judgment is called for, with a look at velocity increases. Note that the last previous load increase from 51.0 - to 52.0 grs RL-22 resulted in a significant velocity raise of 92 -fps, while the final load increase to 53.0-grains netted a velocity gain of only 21 -fps. That’s a signal load-and-clear that the 52.0-grain charge with .4710" expansion qualifies as "Maximum" in your rifle, any further increase being impractical if not unsafe. It thus shows the benefit of combining velocity records with case expansion measurements.
Sincerely
Ken Waters
Reply from Handloader Magazine - Al Miller
(This letter is a retyped copy of the letter received from Al Miller, all typo errors are due to my limited spelling and typing skills)
Dear Mr. Samaras:
The Ackley Improved .243 is almost identical to the Mashburn’s version. Ballistics are almost identical. The following loads were fired in a 26-inch barrel with a rate of twist of one turn in 10 inches. As always, when building loads in your rifle, start a little low and work up carefully.
60-gr. bullet |
50 grs. |
grs. |
IMR-4350 |
3930 |
fps |
|
42 |
" |
IMR-4320 |
3460 |
" |
|
48 |
" |
" |
4170 |
" |
75-gr. bullet |
39 |
" |
IMR-4895 |
3390 |
" |
|
43 |
" |
" |
3630 |
" |
|
45 |
" |
IMR-4350 |
3400 |
" |
|
50 |
" |
" |
3765 |
" |
|
42 |
" |
IMR-4064 |
3495 |
" |
|
44 |
" |
" |
3710 |
" |
|
42 |
" |
H-375 |
3390 |
" |
|
44 |
" |
" |
3495 |
" |
90-gr bullet |
39 |
" |
IMR-4895 |
3225 |
" |
|
41 |
" |
" |
3500 |
" |
|
44 |
" |
IMR-4350 |
3310 |
" |
|
48 |
" |
" |
3575 |
" |
|
46 |
" |
IMR-4831 |
3310 |
" |
|
49 |
" |
" |
3490 |
" |
|
39 |
" |
H-380 |
3025 |
" |
|
40 |
" |
" |
3090 |
" |
100-gr. bullet |
41 |
" |
IMR-4350 |
2910 |
" |
|
47 |
" |
" |
3400 |
" |
|
45 |
" |
IMR-4831 |
3090 |
" |
|
50 |
" |
" |
3340 |
" |
105-gr. bullet |
37 |
" |
IMR-4895 |
2885 |
" |
|
39 |
" |
" |
2960 |
" |
|
45 |
" |
IMR-4831 |
3040 |
" |
|
48 |
" |
" |
3290 |
" |
Keep your barrel cool
Al Miller
(Retyped from Precision Shooting June 1991)
.243 Ackley Improved 40
°24" Barrel: Ranger Maverick
By: R.H. Jourdan
BULLET |
STARTING TEST LOAD |
TESTED LOADS |
|||||||
WEIGHT |
POWDER |
/CHG |
/VELOCITY |
/CASE |
CHG |
/VELOCITY |
/CASE |
/TEMP |
NOTES |
60 gr. |
H4895 |
42 |
3690 |
W |
45 |
3945 |
W |
50° |
|
|
IMR4895 |
42 |
3445 |
W |
|
|
|
75° |
|
|
IMR4064 |
45 |
3781 |
W |
48 |
4116 |
W |
55° |
Careful of temperature! |
H380 |
49 |
3676 |
W |
50 |
3745 |
W |
45° |
|
|
|
H414 |
50 |
3582 |
W |
52 |
3993 |
W |
90° |
Full case. |
|
|
|
|
|
|
|
|
|
|
70 gr. |
H414 |
50 |
3763 |
W |
51 |
3860 |
W |
95° |
|
|
H450 |
49 |
|
|
51 |
3566 |
W |
95° |
Full case. |
|
|
|
|
|
|
|
|
|
|
75 gr. |
IMR4895 |
43 |
3452 |
W |
|
|
|
50° |
|
|
IMR4064 |
45 |
3545 |
R |
|
|
|
65° |
Accurate @ 45 gr. |
|
H380 |
48 |
3485 |
W |
50 |
3606 |
W |
55° |
|
|
H414 |
47 |
3288 |
R |
50 |
3670 |
W |
50° |
Powder lot is important. |
|
IMR4350 |
47 |
3427 |
R |
48 |
3506 |
R |
50° |
|
|
H450 |
49 |
|
|
51 |
3453 |
R |
55° |
Full case. |
|
|
|
|
|
|
|
|
|
|
90 gr. |
IMR4895 |
41 |
3187 |
R |
|
|
|
55° |
|
|
H4895 |
39 |
|
|
40 |
3271 |
W |
45° |
Watch temp. |
|
IMR4064 |
40 |
|
|
43 |
3371 |
W |
38° |
Watch temp. |
|
H380 |
44 |
3119 |
R |
47 |
3334 |
R |
55° |
|
|
H414 |
48 |
3307 |
R |
50 |
3352 |
W |
45° |
Excessive at 90°. |
|
IMR4350 |
44 |
|
|
47 |
3411 |
W |
55° |
Excessive at 75° |
|
H450 |
46 |
|
|
50 |
3360 |
W |
90° |
|
|
H4831 |
46 |
|
|
|
|
|
|
Not tested. |
|
IMR7828 |
49 |
|
|
51 |
3327 |
W |
40° |
Case full. Watch temp. |
|
|
|
|
|
|
|
|
|
|
95 gr. |
IMR7828 |
48 |
|
|
50 |
3368 |
W |
45° |
Case full. Watch temp. |
|
|
|
|
|
|
|
|
|
|
100gr. |
IMR4895 |
39 |
3034 |
W |
|
|
|
55° |
|
|
IMR4064 |
41 |
3130 |
R |
|
|
|
65° |
|
|
H414 |
45 |
3040 |
R |
48 |
3267 |
R |
78° |
Powder lot important. |
|
H380 |
42 |
3060 |
R |
46 |
3228 |
R |
55° |
|
|
IMR4350 |
44 |
3147 |
R |
45 |
3198 |
R |
50° |
|
|
H450 |
48 |
3073 |
R |
|
|
|
85° |
|
|
IMR7828 |
49 |
3161 |
R |
|
|
|
55° |
Compressed. |
|
|
|
|
|
|
|
|
|
|
105 gr. |
H414 |
44 |
|
|
|
|
|
|
|
|
IMR4350 |
44 |
|
|
|
|
|
|
|
|
H450 |
45 |
|
|
|
|
|
|
|
(Note that neither PS magazine nor the author represents these loads to be safe under all circumstances. They are reported for information only purposes. The individual shooter will find that results will vary in different firearms, both as to results and safety.)
(Retyped from Precision Shooting November 1997)
.243 ACKLEY IMPROVED AND VIHTAVUORI POWDER
|
Powder |
Start Load |
Velocity |
Max Load |
Velocity |
Comments |
60 gr. |
VV133 |
36 gr. |
3210 |
40 gr. |
3565 |
Hot! with flattened primers |
Moly |
VV135 |
37 gr. |
3284 |
41 gr. |
3656 |
Accurate load, .35 |
|
VV160 |
46 gr. |
3331 |
50 gr. |
3642 |
|
|
|
|
|
|
|
|
74 gr. |
VV133 |
37 gr. |
3281 |
42 gr. |
3571 |
Stiff extraction, ejector marks |
Moly |
VV135 |
36.8 gr. |
3192 |
40 gr. |
3430 |
|
MEF |
VV160 |
44 gr. |
3187 |
48 gr. |
3487 |
49 gr. pierced primer |
|
|
|
|
|
|
|
80 gr. |
VV133 |
33 gr. |
2904 |
38 gr. |
3267 |
Warn load at 63 ° |
Moly |
VV135 |
35 gr. |
3060 |
39 gr. |
3350 |
Warm load at 63 ° , 40 gr. |
MEF |
|
|
|
|
|
smoked primer |
|
VV160 |
44 gr. |
3159 |
50.3 gr. |
3418 |
67 ° |
|
|
|
|
|
|
|
88 gr |
VV133 |
35 gr. |
3014 |
39 gr |
3236 |
Very Hot! |
Moly |
VV135 |
36 gr. |
2940 |
39.5 |
3240 |
|
|
VV160 |
43 gr. |
3048 |
47 gr. |
3325 |
67 ° - watch temperature |
|
|
|
|
|
|
|
90 gr. |
VV133 |
35 gr. |
3025 |
38.5 |
3259 |
|
Moly |
VV135 |
35.5 gr. |
3037 |
38 gr. |
3210 |
Stiff extraction, ejector marks |
Boat tail |
VV160 |
44 gr. |
3159 |
48 gr. |
3361 |
flat primers at 90 ° |
|
|
|
|
|
|
|
These loads showed promise during the priminary testing and will be tested further. |
|
Powder |
Charge |
Velocity |
Group Size |
68 gr. Moly |
VV133 |
40 gr. |
3565 |
.36 |
|
VV135 |
38 gr. |
3389 |
.26, .31 |
|
|
|
|
|
74 gr. Moly |
VV133 |
40.5gr |
3478 |
.32, .36, .2, .32, .9 at 200 yards |
MEF |
|
|
|
with 4 shots in .56 |
|
|
|
|
|
80 gr. Moly |
VV160 |
50.3 |
3621 |
.33, .5 |
MEF |
|
|
|
|
|
|
|
|
|
88 gr. Moly |
VV133 |
39 gr. |
3236 |
.45, .45, .6, .88, .59, .37, .46 |
|
VV160 |
46.1 gr. |
3280 |
.37, .46 |
|
|
|
|
|
90 gr. Moly |
VV133 |
38.5 gr. |
3259 |
.57, .53 |
Boat tail |
VV160 |
46.1 gr. |
3280 |
.47, .5, .76, 1.2 at 200 yards, |
|
|
|
|
with 4 shots in .75 |
Handbook for Shooters and Reloaders - Vol. I & II by P.O. Ackley
Precision Shooting , June 1991 issue. - Load data tables from article included in this reference document.
Precision Shooting, Oct 1991 issue.
Precision Shooting, Feb.1993 issue. - Good article no load data tables.
Precision Shooting, July 1993 issue. - Good article no load data tables.
Precision Shooting Nov 1997 issue. - Load data tables from article included in this reference document.
If anyone has any of these copies of Precision Shooting please send me a copy of the 243AI articles so I can check into including them in this document. (jmilender@fm-net.com)
Date |
Description |
Revision |
16JAN98 |
First Version of 243 Ackley Improved Handloading Reference. Includes data for 80gr Sierra SBT Blitz, 80gr Berger HP, 80gr Hornady FMJ, 85gr Barnes, and 100gr Sierra bullets. |
1.0 |
30MAR98 |
Additions :Matt’s 55gr Nosler BT, 60gr Sierra HP, and 70gr Speer TNT. Jeff’s 100gr Rem PSP forming load. A list of e-mail contacts. Added a section for additional 243AI References.Corrections / Changes: Made the first page a Warning Page and the second page the index. "MENT" was changed to "MEANT", "you data" changed to "your data", added additional warnings and disclaimer. "Shelin" was changed to "Shilen". Revised Jeff’s Max. load for 80gr Sierra SBT Blitz down from 53.0 to 52.0 gr of RL22. Removed IMR4350 40.6 gr load from 80gr SBT Blitz data. Added correct IMR4350 40.6gr. 100gr Winchester PSP forming load. Added information to Tore’s 80gr Hornady loads. In footer added a class for loads that the owner considers over MAX. Added letter to Handloader Magazine. Added Loads from Precision Shooting Magazine June 1991 issue. |
2.0 |
17JUN98 |
Additions: Added reply letter from Ken Waters on Base Line Pressure Question. Added letter from Al Miller of Handloader Magazine. Added 85gr Sierra Loads from mrussell@micron.net. Added 70gr Speer TNT loads, 87gr Vmax loads, and 95gr Berger VLD load from Dale, Added 80gr Sierra SBT Blitz - Midway Moly, Berger 80 gr. HP, Stark 80gr. and 85 gr. RPVB - Moly, and 100gr. Win PSP Midway Moly - Fire forming loads from Jeff. Added 75 gr Hornady V-Max and 60 gr. Sierra Fire forming load data from Dsim. Added 100gr Winchester PSP Fire Forming Loads from George. Added 100gr Hornady SP Fire Forming Load from Fred. Added 55gr Nosler Bt loads and 68 gr. Berger MEF loads from Doug. Added e-mail address of new group members. Added member numbers and names. Added loading data from Precision Shooting June 1991 and November 1997. Added index of Developers.Corrections / Changes: Changes all references to my e-mail address to my new address ( jmilender@fm-net.com). Corrected some e-mail addresses in list. Changed all owner names to groups numbers. Changes "Contacts that are loading for or are interested in the 243 Ackley Improved" to "Developers". |
3.0 |
11AUG98 |
Same as version 3.0 but without file problems |
3.1 |
5NOV98 |
Added Loading data from 243AI - 02 95gr BT and 105gr A-Max, 243AI - 18 70gr Hornady SPSX , 243AI-3485gr Sierra HP, 243AI-37 70gr Nosler BT MolyCoated - Used for case forming, 243AI - 12 95gr Nosler BT - Moly - Used for case forming, 243AI - 12a 100gr Hornady AP - Moly, 95gr Barnes X Moly, 95gr Berger VLD - Moly, 70gr Sierra - Moly, 95gr Nosler Silver Tip - Moly, 90gr Speer SP - Moly. Added new members. Added developers index. |
4.0 |
8NOV98 |
Corrected 100 gr Hornady SP - Moly load from 243AI-12a was RL19 and should be RL22 |
4.1 |
29JAN99 |
Added 243AI-32 loads for 70gr Speer TNT, 75gr Sierra HP, 75gr Hornady HP, and 80gr Sierra SBT. Added 243AI-38 forming loads for 65gr Shilen HP BR, 70gr Speer TNT, 70gr Nosler BT, AI loads 65gr Shilen, 58gr Hornady and 55gr Nosler |
5.0 |
8JAN03 |
Added a Bunch of new data |
6.0 |