A cartridge is a type of ammunition packaging a projectile (bullet, shots or slug), a propellant substance (usually either smokeless powder or black powder) and a primer within a metallic, paper or plastic case that is precisely made to fit within the barrel chamber of a breechloading firearm. In popular use, the term "bullet" is often misused to call a complete cartridge, though it technically only refers to the projectile part of the cartridge.
Cartridges 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 of the case base (rimfire, and the now obsolete cupfire), in a sideway projection that is shaped like 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).
Military and commercial producers continue to pursue the goal of caseless ammunition. Some artillery ammunition uses the same cartridge concept as found in small arms. In other cases, the artillery shell is separate from the propellant charge.
A cartridge without a projectile is called a blank. One that is completely inert (contains no active primer and no propellant) is called a dummy. One that failed to ignite and shoot off the projectile is called a dud, and one that ignited but failed to sufficiently push the projectile out of the barrel is called a squib.

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  1. ORGunGuy77

    Black Powder Cartridge Makers?

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  2. RicInOR

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  3. D

    Any cartridge collectors in the house?

    I was digging through my rimfire ammo stash, and stumbled across something I forgot I had. It's a 175th Anniversary commemorative tin with 325 rds. of high velocity .22 LR in it. Nice looking collector's tin, Remington green, of course, and is also in the original box. BTW, their 175th...
  4. CountryGent

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  5. No_Regerts

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  6. 2DaMtns

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  7. Tinker Pearce

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  8. jordanka16

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  9. R

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