BBs come in packs of 50, but are used in non-lethal rifles (BB guns and air guns), and as such only deal non-lethal damage. The 5.56mm has been adapted for a number of handguns as well, and any 5.56mm gun is also compatible with the. These calibers of ammunition are generally used in rifles, assault rifles, or machine guns, and are sold in boxes of 20 bullets each. This number is the amount of in a pack for rifle/pistol.This is the range of a d20 attack roll needed to be rolled during an attack to recover a drained cell.This number is the amount of in a pack for shotgun/rifle/handgun.This is the range of a d20 attack roll needed to be rolled during an attack to recover an ammo casing.The purpose of ammunition is to project force against a selected target or area. Ammunition (or ammo) is expendable ordnance material used in weapons of all kinds powder, balls, shot, shells, percussion caps, rockets, missiles, energy, etc. 1.8 Electron Charge Pack, Energy Cell, Microfusion CellĪmmunition for Fallout is covered here.1.5 Alien Power Cell, Alien Power Module.1.4 25mm Grenade, 40mm Grenade, Bean Bag.