Handgun Cartridge Detail

Cartridge Specifications for Caliber: .22 Mag (WMR)
.22 Magnum (.22 Winchester Magnum Rimfire (WMR))
.22 Magnum
Case Type: Rimfire, bottleneck
Introduced: 1959 Made For:Rifle
Cart Len:1.350-in Case Len:1.055-in
Case Dia:0.241-in Bul Dia:0.225-in
Ballistics approximated for:
7.5-inch revolver barrel
Cartridge Variants:
From:30 gr1740 ft/sec202 ft-lbs
To:50 gr1210 ft/sec163 ft-lbs
Cartridge Used in Database
40 gr1510 ft/sec203 ft-lbs
Rankings for
Cartridge Used in Database
PF: 60413 TKO: 1.938

This cartridge pushes the limits of pressure possible with a rimfire case. Also referred to as the .22 WMR, the .22 Magnum was initially offered with 40 grain FMJ and JHP bullets at an advertised muzzle velocity of 2000 fps from a rifle barrel and 1550 fps from a pistol barrel. Due to the high supersonic velocity, .22 WMR cartridges are loaded with jacketed bullets. The various 30-40 grain JHP bullets are best for varmint hunting, but are overly destructive on small game.