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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.
.45-70-405: Action: Trapdoor: Rate of fire: User dependent; usually 8 to 10 rounds per minute ... The Springfield Model 1877 was a variant of the Springfield Model ...
The model 1884 traces its roots back to the design of the Springfield 1873. The model 1884 incorporated a significant number of improvements that had been made between 1878 and 1879. It also featured a serrated trigger that had been incorporated into the Springfield rifle design in 1883.
Rather than re-tool their production equipment to make an item that was now considered obsolete, Springfield Armory chose instead to modify the Model 1873 to use a new bayonet system. [ 1 ] In the days of smooth bore muskets , bayonets had played a considerable role on the battlefield, often accounting for many of battlefield casualties.
The Springfield Model 1888 was one of several models of rifles produced by Springfield Armory for the United States military in the late 19th century. It was the final design in a long line of rifles which used the trapdoor breechblock design developed by Erskine S. Allin in the 1860s and the last single-shot rifle to see American military service.
Springfield Model 1875 – .45-70 caliber trapdoor officer's rifle. [12] Springfield Model 1877 – .45-70 caliber trapdoor carbine. [13] Springfield Model 1880 – .45-70 caliber trapdoor rifle. [14] Springfield Model 1882 – .45-70 caliber trapdoor short rifle. [15] Springfield Model 1884 – .45-70 caliber trapdoor rifle. [16] Springfield ...
Springfield Model 1888, trapdoor mechanism open. In firearms, a trapdoor is a form of breech-loading mechanism for rifles in which a hinged breechblock rotates up and forward, resembling the movement of a trapdoor. [1] The Springfield models 1865 and 1873 were best known for first employing this type of action. [2]
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.