


Only the centerfire and rimfire survived mainstream usage today. Although in popular usage the term "bullet" is often informally used to refer to a complete cartridge, it is correctly used only to refer to the projectile.Ĭartridges can be categorized by the type of their primers – a small charge of an impact- or electric-sensitive chemical mixture that is located: at the center of the case head ( centerfire) inside the rim ( rimfire) inside the walls on the fold of the case base that is shaped like a cup (cupfire, now obsolete) in a sideways projection that is shaped like a pin ( pinfire, now obsolete) or a lip (lipfire, now obsolete) or in a small nipple-like bulge at the case base ( teat-fire, now obsolete). rim, which provides the extractor on the firearm a place to grip the casing to remove it from the chamber once fired Ī cartridge or a round is a type of pre-assembled firearm ammunition packaging a projectile ( bullet, shot, or slug), a propellant substance (usually either smokeless powder or black powder) and an ignition device ( primer) within a metallic, paper, or plastic case that is precisely made to fit within the barrel chamber of a breechloading gun, for the practical purpose of convenient transportation and handling during shooting.

propellant, for example gunpowder or cordite Ĥ.

cartridge case, which holds all parts together ģ. A modern round consists of the following:Ģ. 44 Magnum revolver* ( Mysterious Magnum*)
