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Billinghurst Requa Battery : ウィキペディア英語版 | Billinghurst Requa Battery
The Billinghurst Requa Battery gun was an early rapid-fire gun used during the American Civil War. It was invented by a Dr. Josephus Requa (1833–1910), a dentist by profession, who had at the age of 16 spent three years as an apprentice to William Billinghurst (1807–1880). == Design ==
The gun consisted of twenty-five heavy .58 caliber rifle barrels, each long and mounted together in a secure frame, which could be elevated for range. The frame was then mounted on a two-wheeled carrier. Ammunition was loaded as a long clip of twenty-five rounds, which were fired by a single percussion cap in a single volley. With a crew of three, it could be reloaded and fired seven times a minute, giving a rate of fire of 175 rounds per minute. The .58 caliber bullets were conical and weighed approximately one ounce. It was also possible to adjust the spread of the guns to make them diverge for use at close range.
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