Generally a relatively low powered – low velocity cartridge with the primer compound located under the rim inside the cartridge case. The firing pin strikes the edge of the rim crushing it against the barrel face-causing ignition of the cartridge.
a type of firearm cartridge
Ammunition whose priming mixture is contained in the rim cavity of the cartridge case. When the priming mixture detonates, it ignites the propellant which drives the bullet down the barrel. The location of the priming mixture is an inherent design limitation which contributes to the firearm being relatively low-powered.