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2nd Bull Run |
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Lieutenant John A. Dahlgren designed this nine-inch "soda-bottle" gun combining greatly improved ballistic characteristics, and safety factors. The bottle shape provided thick layers of metal around the breech of the gun, which lowered the risk of exploding when fired. The Dahlgren gun concentrated great strength around the breech. This permitted the development of a greater caliber without an increase in total weight. Dahlgren guns were used on ships, they were very affective on boats and coastal forts. There were many 9 inch guns produced, but there were also 15 and 20 inch guns. There was only one 20 inch gun produced, and it was never used in War. Many of Dahlgren's guns were captured by the Confederates and used against the Union with great effectiveness Smoothbore guns did not have grooves in the bore like rifles. Though the rifle model permits longer and more accurate range of the shells, they were not needed in close range combat. The smoothbores advantages: - allowed shells to skid over the water to hit another ship instead of bouncing away wildly with spin from a rifle gun. - The thick layer of metal around the breech, made it possible to fire larger caliber. - More affective at close range( Most battles in the Civil war was fought at close range) August 29, the troops of the Federal 3rd and 9th Corps attacked Jackson's forces.
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