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The .45-70 (11.6x53mmR), also known as the .45-70 Government, .45-70 Springfield, and .45-2 1 ⁄ 10" Sharps, is a .45 caliber rifle cartridge originally holding 70 grains of black powder that was developed at the U.S. Army's Springfield Armory for use in the Springfield Model 1873.
Winchester also produced a civilian sporting version of the Hotchkiss, likewise in caliber .45-70 Government, until 1899. 1884 Winchester catalog lists an option to chamber the M1883 in ".40-65 Hotchkiss" cartridge (which may or may not be .40-65 Winchester introduced in 1887), but it's not clear if this variant was ever actually produced.
It first appeared in 1879, manufactured by the Sharps Rifle Manufacturing Company.Eventually Remington took over production and produced copies in .45-70.Arguably this was the most modern rifle in the world, until the introduction of the 8mm Lebel M1886 rifle using smokeless powder, the Remington-Lee rifle utilized the first successful detachable box magazine, unlike the Lebel rifle which was ...
The Winchester Model 1886 was a lever-action repeating rifle designed by John Browning to handle some of the more powerful cartridges of the period. Originally chambered in .45-70 Government, .45-90 Sharps, and .40-82 Winchester, it was later offered in a half dozen other large cartridges, including the .50-110 Winchester. [1]
According to the US Army Ordnance Department tests, the 45-70-405 was loaded to 19,000 psi, [4] while the 45-70-500 was loaded to 25,000 psi [2] The average accuracy of the Springfield Model 1873 was a circle with an average radius of 1.7 inches at 100 yards, corresponding to an ~3.4 MOA.
Following the success of the model 1870, the Governor of New York ordered 15,000 Remington rolling block rifles and bayonets for his state's militia. These model 1871 rifles were very similar to the model 1870 rifles, but differed in some details. Field experience with the model 1870 showed that the mechanism jammed too easily in dusty conditions.
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A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves ("rifling") cut into the barrel walls.The raised areas of the rifling are called "lands," which make contact with the projectile (for small arms usage, called a bullet), imparting spin around an axis corresponding to the orientation of the weapon.