Bolter Rounds 40k Space Marine 3D print model

Special Issue Bolter ammunition -- from left to right: a Kraken Bolt, a Vengeance Round, a Hellfire Round and a Dragonfire Bolt.

The Tech-priests of the Adeptus Mechanicus and the skilled Artificers of the Adeptus Astartes have developed many types of Bolter Ammunition, simply called bolts, over the millennia for the different branches of the Imperial military that use Bolt Weapons. The most common variants are described below.