22 WMR

22 WMR AMMO

22 WMR ammo is popular for hunting and plinking because of its light recoil and high velocity. It’s like .22 LR with a turbocharged engine. It’s fast and makes a high-pitched pew sound. Traditionally, 22 mag ammo has been for varmint and small game hunting rifles, but over time gun makers have expanded how it’s used and turned it into a pistol plinker as well. Like a .22 LR, you can stuff a lot of 22 magnum ammo into a single magazine or revolver cylinder.

The round was introduced by Winchester Ammunition in 1960 to give a little variety to rimfire cartridges. On paper, a 22 Win Mag with a 40-grain bullet has a muzzle velocity of 1,910 feet-per-second and 324 foot-pounds of energy. When compared to .22LR, that’s a difference of about 600 fps and more than 170 ft-lbs.

The .22 Winchester Magnum Rimfire, also called .22 WMR.22 Magnum.22 WMRF.22 MRF,[2] or .22 Mag, is a rimfire cartridge. Originally loaded with a bullet weight of 40 grains (2.6 g) delivering velocities in the 2,000 feet per second (610 m/s) range from a rifle barrel, .22 WMR is now loaded with bullet weights ranging from 50 grains (3.2 g) at 1,530 feet per second (470 m/s) to 30 grains (1.9 g) at 2,200 feet per second (670 m/s).[3][4

The .22 WMR was introduced in 1959 by Winchester, but was not used by Winchester until the Winchester Model 61 slide rifle could be chambered for it in 1960.[5] The first rifle to be offered in the new chambering was the Marlin Levermatic rifle in 1959, because its design was easily modified to accept the more powerful cartridge. By the time of the introduction of the Winchester 61, Smith & Wesson and Ruger had revolvers for it, and Savage had come out with the Model 24 and since late 2012, the Model 42, a more modern update than the 24, a .22/.410 rifle/shotgun combination gun. It was the only successful rimfire cartridge introduced in the 20th century.[6]

The .22 WMR uses a larger case than the more popular .22 Long Rifle (LR) both in diameter and length. The .22 WMR case is a lengthened version of the older .22 WRF. In the most common modern .22 WMR loadings using a 40-grain (2.6 g) bullet, the combination of more powder and higher sustained pressures gives velocities of 1,875 feet per second (572 m/s) from a rifle and 1,500 feet per second (460 m/s) from a handgun. Because of its larger size, a .22 WMR round will not fit into the chamber of a .22 LR firearm.

Although the bullet diameters are the same, the larger .22 WMR chamber does not support the smaller .22 LR cartridge. Firing the smaller .22 LR round in a .22 WMR chamber results in swollen or split cartridge cases, high pressure gas leakage from the rear of the chamber, and bullets striking the chamber throat out of alignment, which can result in injury to the shooter or bystander and which does result in poor ammunition performance.

Gun makers offer .22 revolver models with cylinders chambered either in .22 LR or in .22 WMR and as convertible kits with both cylinders which allow the shooter to easily switch calibers on the same firearm.22 wmr ammo for sale

The .22 WMR is an enlarged, more powerful version of the much earlier .22 WRF.[5] Despite frequent claims to the contrary, it cannot be safely used in any firearm except those specifically chambered for it. Even firearms chambered for the .22 WRF are not suitable; for one thing, the case lengths are different, and the fact that the cartridge fits into the chamber does not guarantee that using the wrong cartridge is either safe or effective.

.22 wmr ammo

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