.256 Winchester Magnum

Firearms cartridge January 2013 .256 Winchester Magnum 256magnum.png 100px United States Handgun, rifle Ruger, Winchester 1960 Winchester 1961 .357 Magnum Rimmed, Bottlenecked .257 .285 .368 .381 .440 .060 1.281 1.590 22 1 in 14 in mm on Small pistol 50000 43,000Saami pressures. (n.d.). Retrieved May 3, 2023, from https://leverguns.com/articles/saami_pressures.htm 60 FMJ 2350 735 60 JHP* 2760 1015 8.5" * 24" The .256 Winchester Magnum is a firearms cartridge developed by Winchester, and was produced by necking-down a .357 Magnum cartridge to .257 diameter. It was designed for shooting small game and varmints. History Introduced in 1960, Winchester offered ammo and reloading components into the early 1990s. The cartridge was first chambered in the Ruger Hawkeye single shot pistol. The next year (1962) Marlin chambered their Model 62 Levermatic rifle for the new Winchester cartridge. These were the two principal firearms chambered for the .256 Win. Mag. It is now obsolete and only offered as a chambering by custom manufacturers of single-shot firearm barrels such as Match Grade Machine and Bullberry. Previously, the Thompson Center Custom Shop had produced some, before closing its doors in 2010. Ballistics From an 8.5 inch pistol barrel the 60 grain .256 Winchester factory load was advertised as having a MV of 2350 fps and ME of 735 ft. lbs. This was 250 fps faster and nearly twice as powerful as the .22 Remington Jet, a varmint cartridge for revolvers that was also based on a necked-down .357 Magnum case. According to data from the fifth edition of the Hornady Handbook of Cartridge Reloading, handloaders with a .256 rifle can approximately duplicate the Winchester factory load using the Hornady 60 grain Flat Point bullet in front of 15.5 grains of H4227 powder for a MV of 2700 fps. The trajectory of that load looks like this: +2.3 inches at 50 yards, +4.4 inches at 100 yards, 0 at 200 yards, and -26.2 inches at 300 yards. Winchester offered factory loaded .256 Magnum ammunition (and brass to reloaders) into the beginning of the 1990s. Winchester .256 factory loads used a 60 grain Open Point Expanding bullet at a MV of 2760 fps and ME of 1015 ft. lbs. from a 24-inch rifle barrel. That is about 500 fps faster than Winchester factory loads for the old .25-20 cartridge. At 200 yards the velocity was 1542 fps and the remaining energy was 317 ft. lbs. Firearms The .256 Winchester Magnum was chambered in a very small selection of firearms, and never achieved great commercial success.http://www.highbeam.com/doc/1G1-111971507.html What will be your top self-defense sellers for 2004? Ayoob Massad Shooting Industry. Publishers' Development Corporation 2003-12-01 2012-08-14 2015-11-07 https://web.archive.org/web/20151107112127/http://www.highbeam.com/doc/1G1-111971507.html HighBeam Research usurped December 1, 2003 subscription Its firearms included: Marlin Model 62 Levermatic lever action Universal Firearms M1 carbine variant Ruger Hawkeye single-shot pistol Thompson Center Contender single-shot pistol barrel chambering The 256 Winchester Magnum is also chambered occasionally in custom-built revolvers. Past candidates for this caliber conversion have included Ruger Old Model and New Model Blackhawks,http://www.bowenclassicarms.com/catalog/ruger_single_action_basic_caliber_conversions.html + BCA Catalog + Ruger Single Action Basic Caliber Conversions and Smith & Wesson K-frames (Models 10, 14, 15, and 19).http://www.bowenclassicarms.com/catalog/tech_notes_smith_wesson_small-bore_caliber_conversions.html + BCA Catalog + Small-bore Caliber Conversions 2013-03-15 2020-11-06 https://web.archive.org/web/20201106200835/http://www.bowenclassicarms.com/catalog/tech_notes_smith_wesson_small-bore_caliber_conversions.html dead Colt produced a small number of Pythons in this caliber and retains a prototype in their museum.Association National Rifle American Rifleman Official Journal Of The NRA A Look Back at the Colt Python https://www.americanrifleman.org/content/a-look-back-at-the-colt-python/ 2021-06-17 American Rifleman Official Journal Of The NRA en Gallery See also Table of handgun and rifle cartridges References .256 Winchester Magnum. (KNOW YOUR CARTRIDGE). Gun Digest, 2013 Jan 14, p. 17(1) (0072-9043). 256 Winchester Magnum 256 Winchester Magnum