Including lift to get the cannon ball into the bore chamber. Rodman guns were all nearly identical in design, with a curving soda bottle shape, the only differences being the size of the gun. They were all smoothbore guns designed to fire spherical shot and shell, primarily against ships. The guns were elevated and depressed by means of a lever called the elevating bar. The total length of the gun was 190 inches and it weighed 49,100 pounds. It was usually loaded with 35 pounds of large-grain powder to project the shells weighing 305-335 pounds. It was possible, using 40 pounds of powder at 39 degrees, to attain a shooting range of considerably beyond four miles.
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