Dyin' Ain't Much of a Living

Dyin' Ain't Much of a Living is a two-star (★★) challenge added in the Fallout: New Vegas add-on Gun Runners' Arsenal.

Challenge requirements
The player must kill 5 members of NCR or Legion hit squads, using any weapons affected by the Cowboy perk.

The following weapons count towards this challenge.
 * Explosives
 * Dynamite
 * Long-fuse dynamite
 * Fire bomb
 * Time bomb
 * Melee
 * Bowie knife
 * Blood-Nap
 * Combat knife
 * Chance's knife
 * Hatchet
 * Knife
 * Throwing hatchet
 * Throwing knife
 * Tomahawk
 * War club
 * Guns
 * .357 magnum revolver
 * Lucky
 * .44 magnum revolver
 * Mysterious Magnum
 * 5.56mm pistol
 * That Gun
 * BB gun
 * Abilene Kid LE BB gun
 * Brush gun
 * Medicine Stick
 * Cowboy repeater
 * La Longue Carabine
 * Hunting revolver
 * Hunting revolver (GRA)
 * Lever-action shotgun
 * Ranger Sequoia
 * Trail carbine

Behind the scenes
The name of the perk is a reference to the film 'The Outlaw Josey Wales', in which Josey says this phrase to a bounty hunter pursuing him.