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For an overview of 5mm ammunition types in the Fallout series of games, see 5mm round.
Gametitle-VBThe following is based on Van Buren and has not been confirmed by canon sources.

5mm is a type of ammunition that was to appear in Van Buren, the canceled Fallout 3 by Black Isle Studios.


5mm rounds are still in use by New California Republic (NCR) in 2253. All of the NCR soldiers in Hoover Dam and Ballistic Orbital Missile Base 001 carry spare magazines.

Weapons using this ammunitionEdit


  1. Captain Davidson carries extra ammunition for the assault rifle - Van Buren B.O.M.B.-001 design document. [1]
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