
Springfield Model 1866 rifle (Allin conversion)
DOPE HISTORY — No pause to reload: Six months after the Fetterman Fight, warriors attacked expecting the pause that muzzle-loaders forced after each volley. Powell's men had just been issued the new breech-loading Springfields and kept up a steady fire from behind the wagon boxes.
After the Civil War the Springfield Armory converted its muzzle-loading rifle-muskets to breech-loaders with Erskine Allin's hinged "trapdoor" breech, which took a self-contained metallic cartridge. A soldier could now reload in seconds without standing up, the change warriors who expected the old pause between shots did not yet know about.
- Calibre
- .50-70 centrefire
- Effective range
- about 300–500 yd
- Rate of fire
- about 8–10 rounds a minute


