The .22 WMR, also known as .22 Magnum, has been a small-caliber powerhouse since its debut in 1959. Initially designed for varmint hunting and small game, this round offers more punch than the standard .22 LR, making it a favorite for those seeking versatility and performance in a compact cartridge.
Read more about the history of the 22 WMR here: https://ammo.com/rimfire/22-wmr-ammo