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The Model 1873 was the fifth variation of the Allin trapdoor design, and was named for its hinged breechblock, which opened like a trapdoor. The infantry rifle model featured a 32 5 ⁄ 8 -inch (829 mm) barrel, while the cavalry carbine used a 22-inch (560 mm) barrel.
Springfield Model 1870 – .50-70 caliber trapdoor rifle. [8] Springfield Model 1870 Remington-Navy – .50-70 caliber rolling-block rifle. [9] Springfield Model 1871 – .50-70 caliber rolling-block rifle. [10] Springfield Model 1873 – .45-70 caliber trapdoor rifle. [11] Springfield Model 1875 – .45-70 caliber trapdoor officer's rifle. [12 ...
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]
Like many other armed forces, the U.S. Army searched for a new rifle in the early 1890s to replace their old Springfield Model 1873 "trapdoor" single-shot rifles. A competition was held in 1892, comparing rifle designs from Lee , Krag–Jørgensen , Mannlicher , Mauser , Schmidt–Rubin , and about 40 other military and civilian designs.
The Springfield Model 1877 was a variant of the Springfield Model 1873 carbine. In 1877, many changes were made to both the Model 1873 rifle and the Model 1873 carbine (the carbine was just a shorter version of the rifle).
Springfield Armory was to assemble rifles from Winchester actions and hardware with barrels and stocks manufactured at the armory. Sights, cleaning rods, and stock hardware were nearly identical to contemporary production for the single-shot "trapdoor" Springfield Model 1873.
The Springfield Model 1875 was a variant of the Springfield Model 1873 ... The Model 1875 officer's rifle was checkered fore and aft of the trapdoor breech and tipped ...
The result of the quest for a more accurate, flatter shooting .45 caliber cartridge and firearm was the Springfield trapdoor rifle. Like the .50-70, the .45-70 used a copper center-fire case design. A reduced power loading was also adopted for use in the Trapdoor carbine. This had a 55-grain (3.6 g) powder charge.