12.7mm Round

 is a type of Ammunition in Fallout: New Vegas.

Characteristics
The Hauer Premium 12.7mm civic defense round is a consumer-grade pistol round of identical diameter to the military-grade .50 caliber, but less powerful. It is probably similar to the real-world .50 AE magnum pistol round.

Locations

 * A large amount of 12.7mm rounds (1500+) are available for purchase from Contreras in his supply shack at Camp McCarran.
 * Knight Torres sells 12.7mm rounds in decent quantities in the Hidden Valley Bunker

Used in

 * 12.7mm pistol
 * 12.7mm SMG

Appearances
The 12.7mm round only appears in Fallout: New Vegas.