Most military-grade armor-piercing or explosive-tipped projectiles for Gauss Guns and other types of Slugthrower are made from Bitanium, even though the low mass density imposes certain handicaps when it comes to efficient kinetic energy transfer. The lower ammo weight enabling more reloads to be carried is generally seen as a positive trade-off.
Behind the ScenesEdit
Of course, we rather shamelessly stole the term from Star Trek. For similar reasons, one can occasionally find references to Tritanium or Transparent Aluminum in our stories, also in homage to Star Trek.