The American men-of-war went to sea with sights on their guns that enabled a cannonneer to fire with nearly the accuracy of a rifle. In their occasional use of sheet-lead cartridges, which required less sponging and worming after firing than those of flannel and of paper, they anticipated the copper shells of recent American invention. The broadsides of that day may seem to us ridiculous in weight, as compared to those of our time. A projectile from an iron-clad now exceeds the entire mass of metal thrown by the largest of the old line-of-battle ships. The heaviest broadside in the United States in 1812—that thrown by the _United States_ carrying fifty-four guns—was but 846 pounds. Nevertheless the American ships had usually heavier and better guns and of longer range than the British. The power of a line-of-battle ship had been condensed into the space of a frigate. This was the American idea, to increase the weight of metal thrown in broadside without altering the ship’s rating. With their guns every man and boy on board was constantly familiar by daily practice, and the name and purpose of each rope, crook, pulley, and cleet on the carriages were fully known to all. It must be remembered that horizontal shell-firing was unknown sixty years ago. Bombs could be thrown only from mortars as in a land siege, but never from cannon in naval duels, though short howitzers were occasionally employed in Europe to fire bombs. “Bomb-guns, firing hollow shot,” on ships, were not invented until 1824. The seeming advantage to the old time sailor, in his exemption from exploding shells, was in reality and from a humane point of view, a disadvantage; since in navals annals short sharp engagements were less common. A vast waste of ammunition causing “prolonged mutilation and slaughter” was rather the rule. It was the coolness of the American cannonneer, his economy in firing his gun only when he was reasonably sure of hitting, his ability to hold the linstock from the touch-hole till the word was given to fire, that made the duels of 1812 short and decisive.