A rimmed or flanged cartridge with the priming mixture located inside the rim of the case. The most famous example is the .22 rimfire. It has been estimated that between 3-4 billion .22 cartridges are loaded in the U.S. each year.

A self-contained metallic cartridge where the primer is contained inside the hollow rim of the cartridge case. The primer is detonated by the firing pin striking the outside edge of the rim, crushing [..]

firearms cartridges have their priming compound spun by centrifugal force into the crevice of the hollow rim on sophisticated equipment in factories. Rimfire cartridges, such as the .22 Long Rifle, ca [..]

or Rim-Fire or Rim Fire ... A system of priming a cartridge case where the primer is held in the rim of the case and is set off by the cartridge case rim being struck and crushed. The cases cannot be [..]

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.