Ammunition Parts

The assembled package of the casing, the bullet, the propellent (typically gunpowder), and the primer.

Bullet

The projectile expelled from the firearm.

Casing

The metalic case in which the primer, gunpowder, and bullet are package.

Gunpowder

The explosive powder that acts as the propelant for the bullet.

Primer

The small, circular button at the base of the ammunition casing, filled with nitro glycerin, when struck, explodes.