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Home > Propellants, Firearms, and Ammunition Development > Ammunition

Ammunition consists of four components:

  • Propellant
  • Projectile (bullets and shot pellets)
  • Cartridge cases
  • Primer

Self-contained ammunition, in which the propellant, projectile, and primer are held together by a cartridge case, is called fixed ammunition. Artillery ammunition with separate components is called semifixed ammunition. A cartridge is a single unit of fixed ammunition.

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