.22 Winchester Automatic

Rifle cartridge Product February 2023 .22 Winchester Automatic 22 caliber Winchester Automatic Rimfire cartridge.jpg 250px .22 Winchester Automatic Rimfire cartridge (copper case, right) with .22 Long cartridge (brass case, left) for comparison United States Rifle 1903–today Rimmed, straight .222 .250 .250 .310 .665 .915 Rimfire 14500 CIP 45 1055 111 45 882 78 20 Barnes & Amber 1972 The .22 Winchester Automatic (also known as the .22 Winchester Auto and occasionally .22 Win Auto) is a .22 in mm on American rimfire rifle cartridge. Introduced for the Winchester Model 1903 semiautomatic rifle,Barnes, p.275, ".22 Winchester Automatic". the .22 Win Auto was never used in any other firearm. It will not chamber correctly in other .22 rimfire weapons, nor will other .22 rimfire ammunition, including the very dimensionally-similar .22 Remington Automatic,Barnes, p.275, ".22 Winchester Automatic", & p.283. interchange with it. This feature was to prevent use of black powder rounds, which were still popular when it first appeared, from being used in the M1903, resulting in powder residue rapidly clogging the action and rendering the weapon inoperable. The power of the .22 Win Auto is comparable to the .22 Long rimfire, and while it fires a heavier bullet, it offers no performance edge on either the .22 Long or the very much more common .22 Long Rifle. See also List of cartridges by caliber List of rifle cartridges List of rimfire cartridges 5 mm caliber References Notes Barnes, Frank C., ed. by John T. Amber. ".22 Winchester Automatic", in Cartridges of the World, pp. 275, 282, & 283. Northfield, IL: DBI Books, 1972. 0-695-80326-3. Category:Pistol and rifle cartridges Category:Rimfire cartridges Category:Winchester Repeating Arms Company cartridges Category:Weapons and ammunition introduced in 1903