Big Boomer

The  is a unique weapon in Fallout: New Vegas. It is a unique variant of the sawed-off shotgun. It is also a holdout weapon, just like it's normal variant, the sawed-off shotgun.

Characteristics
Similar to the Double-barrelled shotgun from Point Lookout, It fires two shells with one pull of the trigger, consuming ammo twice as fast, but dealing significantly better damage in the process. The gun has its name written on the side of it.

Locations
The Big Boomer is carried by Old Lady Gibson, who resides in the Gibson Scrapyard.

Attack her to make her hostile and when she pulls the gun out, Aim at her gun arm or the gun itself in VATS. Pick up the dropped weapon and hoster your weapon. She should not stay aggressive.

Alternatively, you could pickpocket all of her 12 gauge rounds. Wait a few days and she should have Big Boomer in her inventory for you to steal.

Appearances
The appears in Fallout: New Vegas.