Ammunition

Ammunition is the term used for expendable ordnance material used in charging firearms of all kinds; as powder, balls, shot, shells, percussion caps, rockets, missiles, energy, etc. The purpose of ammunition is to project force against a selected target or area.

Special and no ammunition required
A few weapons in the Fallout games do not use ammunition in the traditional sense at all. These are:
 * Meat Cannon (Fallout: Brotherhood of Steel)
 * Rock-It Launcher (Fallout 3)
 * Solar Scorcher (Fallout 2)
 * Vault Dweller Red Ryder BB Gun (Fallout: Brotherhood of Steel)