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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.
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.
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]
In 1888 the Mexican government purchased a 100 Model 1883 Winchester Hotchkiss rifles [2] In the 1880s, Costa Rica purchased a small quantity of Winchester-Hotchkisss M1880 rifles and carbines chambered in 43 Spanish. [3] Winchester also produced a civilian sporting version of the Hotchkiss, likewise in caliber .45-70 Government, until 1899.
The Thompson/Center Contender is a break-action single-shot pistol or rifle that was introduced in 1967 by Thompson/Center Arms. It can be chambered in cartridges from .17 Bumble Bee to .45-70 Government.
The most dramatic change to the rifle design, which is often considered to be the identifying feature of the model 1884, was a new rear sight which had been designed by Lieutenant Colonel Adelbert R. Buffington of the U.S. Army Ordnance Department. This sight however was not perfected until 1885.
H&R Model 155 'Shikari' '': Year of Manufacture: 1973-1981, These were single-shot break available in 12ga, 20ga shotgun barrels along with 44mag, 45-70 govt. rifle barrels with an under-barrel cleaning rod.
These rifles were made in a variety of calibers, both rimfire and centerfire, including the 12.17x42 mm rimfire, 12.17x44 mm rimfire and 12.17x44 mm rimmed centerfire Swedish and Norwegian cartridges, .43 Spanish (11.15x58mmR), .50-70, .40-70, .45-70 and later in .22 caliber.