Literally billions of rounds of .22 caliber rimfire ammunition are fired each year.
Most of it is shot while plinking and hunting squirrels and rabbits.
Small varmints, like groundhogs, are also heavily hunted with rimfire guns.
Today, almost all of the rimfire ammo used is of .22 caliber with but a few limited exceptions. However, this was not always the case.
One of the most sought-after “Yankee” guns of the Civil War was a Spencer carbine. Its very large magazine capacity and the fixed cartridge it used made it a very desirable weapon.
