Colt Model 1929 Prototype .276 Rifle, by Ed Browning
This video delves into the historical significance of the Colt Model 1929 Prototype rifle, designed by Ed Browning. Submitting to US War Department trials, this .276 caliber rifle showcased a recoil-operated, tilting bolt system derived from the 1911 pistol and incorporated an accelerator similar to Browning's machine guns. Despite its innovative design, the rifle was ultimately disqualified due to several functional issues including poor feeding and cooling, an overly long receiver, and excessive weight. The video also touches upon Ed Browning's subsequent modifications, including the transition to a gas piston system, and its later association with Winchester.












