Ammunition that consists of a bullet, the casing, the powder and the primer.

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Commonly known as a cartridge (for modern firearms)

Firearms, weapons, ammunition, cartridge.

It is an assembly consisting of the cartridge case, gunpowder, a primer and a projectile (bullet). It is one complete round of ammunition. Early muzzle loading firearms did not use them.

The .454 Casull is a firearm cartridge. It was developed in 1957 by Jack Fullmer and Dick Casull. Wikipedia has some general information about the cartridge. More specific information can be found on firearms websites such as the Firearms Forum and the Firearm Blog.

In most cases, a .22 short cartridge can be fired from a firearm with a .22 LR chamber. However, with repeating firearms, such as lever, pump or semi auto, the short cartridge may not feed through the action- it will require loading one cartridge at a time- and they will not cycle most semi auto firearms.