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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.
The model 1884 was also produced in a carbine version. It was found that the rear sight could be easily damaged when removing the rifle from the carbine boot. The rear barrel band was therefore modified in 1890 to include a rear sight protector. A round-rod bayonet model was also produced, designated the Model 1888.
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.
.45-70-405: Action: Trapdoor: Rate of fire: User dependent; usually 8 to 10 rounds per minute ... The Springfield Model 1880 was a trapdoor rifle based on the design ...
Over 50,000 Model 1868 rifles were manufactured, chambered for the .50-70 450 cartridge. This model served as the basis for the definitive Springfield Model 1873 series of rifles in .45-70-405 caliber, which was adopted in 1873 as the standard military longarm of the United States armed forces for the next 20 years.
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 ...
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.
The "Hickok rifle" has a 29.625-inch (75.25 cm) barrel, which is longer than the carbine version's barrel and shorter than the rifle version's barrel, and also has a Kentucky rifle style sloped butt. The trapdoor mechanism is stamped with the year 1870, and the lockplate is stamped with the year 1863, indicating that this rifle was originally ...