This video explores progressive or gain twist rifling, where the rate of rotation changes from breech to muzzle. Historically used in firearms like the Carcano 1891 and early Colt revolvers, its primary benefit is reducing initial bullet stress to prevent jacket separation. While some claim accuracy improvements, historical competition data is mixed. Modern applications include the S&W 460 XVR.
The Carcano M91, an Italian workhorse rifle, utilized a unique 6.5x52mm cartridge and gain-twist rifling. Despite criticisms, it was a robust design, with over 3.5 million produced. Key features include a Mannlicher-style en-bloc clip and a distinctive flag safety, though a bolt guide lug can be a potential jamming point.
This YouTube Q&A video from Forgotten Weapons covers a wide array of firearms-related topics. It delves into technical aspects like gain twist rifling and compares the 6.5mm Arisaka to modern cartridges. The discussion also touches upon historical firearm decisions, such as the US abandonment of the M1917 Enfield, and explores future acquisition interests. The video addresses the mechanics of Stoner's gas impingement system, potential BAR modernization, and the reasons behind military firearms surplus and its dealers. Additionally, it provides guidance on identifying collectible firearms, discusses the decline of rimmed and rimfire cartridges, and examines modern firearm technologies like binary triggers and rotating barrel pistols. French arms reputation and the potential US availability of the L85A2 are also explored, with a brief mention of on-location battlefield footage.
This American Rifleman TV episode delves into the history and design of the Italian Carcano bolt-action rifle, adopted in 1891 and serving through WWII. Despite a reputation for 'ramshackle' construction, the Carcano is noted for its ruggedness and surprisingly fast operation. The program highlights its unique 6.5x52mm cartridge, gain twist rifling, and en-bloc clip loading system, while also addressing its historical infamy due to its use in the JFK assassination.
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