![]() This loading developed a maximum velocity of 2,000 ft/s (610 m/s) in the 30-inch (760 mm) barrel of the Krag rifle, and 1,960 ft/s (600 m/s) in the 22-inch (560 mm) barrel of the Krag carbine. 30 Army loading was standardized in 1894 using a 220-grain (14 g) metal-jacketed round-nose bullet with 40 gr (2.6 g) of nitrocellulose powder. ![]() ![]() After a brief experiment with a 230-grain bullet loading, the. 303 British, to which it is very similar geometrically. 30-40 was the first cartridge adopted by the US Army that was designed from the outset for smokeless powder. Navy and Marine Corps had adopted limited numbers of smokeless powder and bolt-action rifles, the. The cartridge was also used in the M1893, M1895, M1897, and M1900 Gatling guns. The rifle ultimately selected for use by the Army was the Krag–Jørgensen, formally adopted as the M1892 Springfield. 45-70 Government, the new cartridge was considered small-bore at the time. Since the cartridge it was replacing was the. armed forces with a smokeless powder cartridge suited for use with modern small-bore repeating rifles to be selected in the 1892 small arm trials. 30 Army) was a cartridge developed in the early 1890s to provide the U.S. First cartridge adopted by the US Army that was designed for smokeless powder.30-40 Krag
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