Noun
rimfire (plural rimfires)
A type of firearm cartridge where the primer is in the back rim, rather than a central primer cap. They are cheap to produce but cannot be reloaded with powder.
Homologated safes are required for all rifles and handguns, but none for class 3 weapons (shotguns and rimfire rifles), nevertheless a safe is recommended as the owner is responsible for firearm thefts. Source: Internet
No magazine restriction exists for rimfire rifles (.22lr) and bolt action rifles. Source: Internet
The primer charge is at the base of the cartridge, either within the rim (a " rimfire " cartridge) or in a small percussion cap embedded in the center of the base (a " centerfire " cartridge). Source: Internet
As a rule, centerfire cartridges are more powerful than rimfire cartridges, operating at considerably higher pressures than rimfire cartridges. Source: Internet
Centerfire cartridges are also safer, as a dropped rimfire cartridge has the potential to discharge if its rim strikes the ground with sufficient force to ignite the primer. Source: Internet
Later many were converted to rimfire. Source: Internet