Mad Bomber

 is a perk in the Fallout: New Vegas add-on, Gun Runners' Arsenal.

Effects
Specialized training is now available for wastelanders with a talent for Repair and a love of Explosives. Crafting tin grenades, fat mines, and even devastating Nuka-grenades are a snap with this handy perk.

Crafting weapons

 * Bottlecap Mine, Efficient - same recipe as Bottlecap Mine but use only 3 Cherry Bombs instead of 5.
 * Fat mine - 1 Mini Nuke, 1 Scrap Electronics, 1 Scrap Metal, 1 Sensor Module.
 * MFC cluster - 1 Duct Tape, 18 Microfusion Cells, 1 Scrap Electronics.
 * MFC grenade - 3 Microfusion Cells
 * Nuka-grenade (Gun Runners' Arsenal) - 1 Abraxo Cleaner, 1 Nuka-Cola Quartz, 1 Tin Can, 1 Turpentine.
 * Time Bomb, high yield - 1 Duct Tape, 6 Dynamite, 1 Egg Timer, 1 Scrap Electronics.
 * Tin grenade - 1 Duct Tape, 50 Powder Pistol, 1 Tin Can.