Ammunition consisting of a cylindrical casing containing an explosive charge and a bullet; fired from a rifle or handgun WordNet 3.0 & Open English WordNet

A cartridge, also known as a round, is a type of pre-assembled firearm ammunition packaging a projectile, a propellant substance and an ignition device within a metallic, paper, or plastic case that is precisely made to fit within the barrel chamber of a breechloading gun, for convenient transportation and handling during shooting. Wikipedia

A type of modern ammunition Wikipedia Disambiguation

Type of ammunition packaging that includes a bullet or shot, a propellant substance, and a primer within a metallic, paper, or plastic case Wikidata

The package consisting of the bullet, primer, and casing containing gunpowder; a round of ammunition. Wiktionary

Firearms package. Wiktionary (translation)