Prototype Winchester WW1 .50 Cal Antitank Rifle
This prototype Winchester Model 1918 .50 caliber antitank rifle is a rare glimpse into WWI experimental firearms. Developed alongside the .50 BMG cartridge, it featured a unique pistol-grip bolt handle and a 5-round box magazine. Despite its innovative design, a catastrophic receiver failure during testing highlights the challenges of early high-caliber anti-tank weapon development.









