.22 WMR (.22 Magnum) is a rimfire cartridge more powerful than the .22 LR, used for small-game and varmint hunting at extended rimfire ranges.

.22 WMR offers higher velocity and more energy than the .22 LR, extending useful range on small game and varmints while keeping recoil very light. It is popular for pest control, predator hunting at modest ranges, and recreational shooting. Ammunition costs more than .22 LR and is less universally stocked, though still broadly available, and it is not interchangeable with .22 LR. It suits shooters who want more reach and power than a .22 LR in a still low-recoil rimfire.

General information about this caliber — not a recommendation for this specific firearm.