| .50-70 Government | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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| Type | Rifle | |||||||||||||||
| Place of origin | United States | |||||||||||||||
| Service history | ||||||||||||||||
| In service | 1866–1873 | |||||||||||||||
| Used by | United States | |||||||||||||||
| Production history | ||||||||||||||||
| Designed | 1866 | |||||||||||||||
| Produced | 1866–present | |||||||||||||||
| Specifications | ||||||||||||||||
| Case type | Rimmed, straight | |||||||||||||||
| Bullet diameter | .515 in (13.1 mm) | |||||||||||||||
| Neck diameter | .535 in (13.6 mm) | |||||||||||||||
| Base diameter | .565 in (14.4 mm) | |||||||||||||||
| Rim diameter | .660 in (16.8 mm) | |||||||||||||||
| Rim thickness | .065 in (1.7 mm) | |||||||||||||||
| Case length | 1.75 in (44 mm) | |||||||||||||||
| Overall length | 2.25 in (57 mm) | |||||||||||||||
| Primer type | Benét Internal | |||||||||||||||
| Maximum pressure | 22,500 psi (155 MPa) | |||||||||||||||
| Ballistic performance | ||||||||||||||||
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| Test barrel length: 28" Source(s): Accurate Powder [1] | ||||||||||||||||
The .50-70 Government / 12.7 x 45 mm R, also known as the .50-70 Musket, .50-70 Springfield, and .50-1+3⁄4" Sharps[2][3]) is a black powder cartridge adopted in 1866 for the Springfield Model 1866 trapdoor rifle.
- ^ .50-70 Govt data from Accurate Powder at the Wayback Machine (archived 2007-09-30)
- ^ jestertoogmailcom, A. (2018b, April 11). (157) .50″-70 Springfield. Military Cartridges. https://militarycartridges.com/category/157-50-70-springfield/
- ^ Barnes, Frank C., and Amber, John. Cartridges of the World (Northfield, IL: DBI Books, 1972), p.115, ".50-70 Musket (.50 Gov't)"