12.7mm Round

 is a Ammunition in Fallout: New Vegas.

Characteristics
The 12.7mm 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.

Used in

 * 12.7mm pistol
 * 12.7mm SMG

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