.30 Army
The .30-40 Krag, also known as the .30 U.S. and .30 Army, was a rifle cartridge developed in the early 1890s to provide the U.S. 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. Since the cartridge it was replacing was the .45-70 Government, the new cartridge was considered ''small-bore'' at the time. The rifle ultimately selected for use by the Army was formally adopted as the M1892 Springfield, better known as the Krag–Jørgensen from the Norwegian designers' names. The cartridge was also used in the M1893, M1895, M1897, and M1900 Gatling guns. History and development Though the U.S. Navy and Marine Corps had adopted limited numbers of smokeless powder and bolt-action rifles, the .30-40 was the first cartridge adopted by the US Army that was designed from the outset for smokeless powder. It was patterned after .303 British, to which it is very similar geometrically. After ...
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