Captain James Chester, U.S.A. wrote of the floating battery in Inside Sumter in '61, saying: "The guns in the lower tier (of Fort Sumter), which were the only ones used during the bombardment,-except surreptitiously without orders,-were 32 and 42-pounders, and some curiosity was felt as to the effect of such shot on the iron-clad battery. The gunners made excellent practice, but the shot were seen to bounce off its sides like pease. After battering it for about an hour and a half, no visable effect had been produced, although it had perceptibly slackened its fire, perhaps to save ammunition. But it was evident that throwing 32-pounder shot at it, at a mile range, was a waste of iron, and the attention of the gunners was transferred to Fort Moultrie."