
1) American Civil War rifle 2) Rifle of the United States
Found on
https://www.crosswordclues.com/clue/sharps-rifle

Sharps rifles were a series of large bore single shot rifles that began with a design by Christian Sharps in 1848 that are renowned for long range accuracy. By 1874 the rifle was available in a variety of calibers and had been adopted by the armies of a number of nations and was one of the few successful designs to transition to metallic cartridge...
Found on
http://en.wikipedia.org/wiki/Sharps_rifle
No exact match found.