12.7mm round

**12.7mm rounds** are a rare type of ammunition that was manufactured before the Great War by Hauer Premium, and can be found in *Fallout: New Vegas*.

## Characteristics

The Hauer Premium Show Stopper 12.7mm civic defense round is a consumer-grade pistol round. In essence, these rounds consist of a big flat bullet in a straight case, with a rebated rim. While they have an identical bullet diameter to the military-grade .50 caliber, the much smaller case means it holds less powder and can be safely used in man-portable auto-loading weapons.

### Weapons using this ammunition

* 12.7mm pistol
* 12.7mm submachine gun
* 12.7mm submachine gun (GRA) Gun Runners' Arsenal
* Survivalist's rifle Honest Hearts
* Li'l Devil Gun Runners' Arsenal

## Variants

### 12.7mm round, hollow point

Hollow point bullets mushroom and break up on impact, causing massive trauma on fleshy, unarmored targets. However, this also means they break up when they hit things like armor plate; drastically reducing the weapon's penetrating power.

### 12.7mm round (hand load) (GRA)

A new type of ammunition added with the add-on *Gun Runners' Arsenal*, JHP, or jacketed hollow point, uses a metal-clad bullet that retains most of the damage bonus of ordinary hollow point rounds, but with a less severe armor penalty.

### 12.7mm round (junk)

Junk rounds are makeshift bullets made from materials commonly found while scavenging, such as scrap metal and tin cans. Junk rounds are only good as a last resort ammo-type, as firing them causes extra wear on the firearm, and do all around less damage.

Crafting

## Notable locations

* Vendortron, at moderately low levels.
* Knight Torres, at the Hidden Valley bunker.
* The arms merchant at the 188 trading post, semi-regularly sells 12.7mm ammunition.
* One can find 10-30 rounds in the Bloodborne cave. Two twelve-round boxes, one by each 12.7mm weapon in the cave's hidden cache.
* Daniel Contreras, at Camp McCarran, sells these round at fairly low levels, and in high amounts.
* Cliff Briscoe, at Novac, sells these rounds at higher levels.
* Great Khans. legionaries and Fiends will occasionally carry some rounds.
* Quartermaster Bardon at Hoover Dam sells these rounds in high amounts (1,000-3,000 at a time).

## Notes

“
12.7mm is basically something in the .50 AE / .50 Beowulf range: big flat bullet, straight case, rebated rim.

”— J.E. Sawyer
* 12.7mm rounds could not be made at the reloading bench prior to patch 1.2.0.31x, and could not be broken down prior to patch 1.4.0.5xx.
* 12.7mm rounds weighed 0.0064 units each - one-tenth their current weight - prior to patch 1.4.0.5xx.

The Junk Rounds perk from the *Dead Money* add-on was at one point intended to create ammunition of a special subtype. Called *"Junk"* or *"JNK"*, these rounds all provided the same modifiers regardless of caliber: 0.75x to Damage and 1.5x to Gun Condition. The rounds remain present in game code but are not placed in any locations, and if somehow obtained cannot be used in *any* weapons, even those chambered for the correct caliber.

Curiously, the presence of 12.7mm JNK rounds indicates that the perk was to provide a recipe for crafting 12.7mm rounds, though the final version of the perk does not include one.
JSawyer integrates these rounds into the Junk Rounds perk and allows them to be craftable in the game as originally intended.

## Bugs

* PC Xbox 360 Buying a case box 12.7mm from the Gun Runners will sometimes cause the game to crash.
* 12.7mm JHP rounds are simply listed as '12.7mm round (GRA)'.

## References

1. ↑ J.E. Sawyer: "12.7mm is basically something in the .50 AE / .50 Beowulf range: big flat bullet, straight case, rebated rim."