Bullet

The bullet is the part of a round that comes out the end of the rifle towards its target, which it usually does a fair bit of damage to.

Often confused with 'rounds', the bullet is only the piece that is propelled out of the muzzle. A round is the complete package: bullet and cartridge case.

Early firearms fired a lead ball which had fairly dodgy aerodynamics - this is where the term 'round' originates.