Statistics for occurrence #1 of “Fort Sumter” in chapter 50 of Admiral David D. Porter, The Naval History of the Civil War.:

... fort, and open fire upon it with their rifled guns. These vessels were within range of Fort Moultrie for some time, but suffered little damage, while their rifle projectiles told on the walls of Fort Sumter with considerable effect. Large masses of masonry were displaced, heavy timbers thrown into the air, gun-cartridges destroyed, and, in fact, the work reduced to a great heap of ruins; but there it ...
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