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22 WMR Uses & Background

22 WMR ammunition, also known as .22 Winchester Magnum Rimfire or simply .22 Magnum or .22 Mag, is a high velocity rimfire cartridge first introduced in 1959. Almost from the beginning, it was used in both revolvers and long guns and developed an excellent reputation as a step up in power from the .22 LR (though it is certainly louder and somewhat more expensive as well). The .22 WMR uses a long case which holds a respectable amount of propellant, giving it significantly more ballistic potential than shorter rimfire cartridges; at the same time, it is still a relatively quiet round that produces low felt recoil.

.22 WMR ammo tends to fire bullets weighing between 30 and 50 grains, with the 30 grain ones capable of achieving a high muzzle velocity of 2,300 feet per second--comparable to that of many centerfire calibers, albeit with a much lighter projectile. Loads of this type excel for medium range target shooting and (with appropriate hollow point ammo) varmint hunting. Heavier bullets produce stronger penetration and work well for hunting small to midsize animals such as coyotes and raccoons.

FMJ or copper plated .22 WMR ammunition is a good choice for target shooting; a shotshell load is also available for close-range elimination of snakes and rats. A number of high quality hollow point designs make the .22 WMR a powerhouse in the varmint and small game arena. These include the polymer tipped Hornady V-MAX, the Remington AccuTip, the hollow point Winchester Dynapoint, and the Federal Game-Shok.