This video explores the Barnekov Greene Prototype 1870 Open-Bolt Army Rifle, a unique toggle-locked, single-shot firearm patented by Kiel V. Barnekov. The rifle was submitted to the US 1872 rifle trials, competing against the Springfield Allin conversion that was ultimately chosen. The description details the rifle's simple but problematic open-bolt mechanism, manual cartridge insertion, and extraction process. The prototype is believed to be in .45 caliber, possibly for a pistol cartridge, while a .50-70 caliber rifle was submitted for the trials. The Barnekov rifle was withdrawn from testing and never reappeared publicly.
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