Super sledge

Fallout and Fallout 2
A Super Sledgehammer, manufactured by the Brotherhood of Steel, using the finest weapon technology available. Includes a kinetic energy storage device to increase knockback. Min ST: 5. Trivia:The appearance is similar to that of a sledgehammer used in Mad Max:Beyond Thunderdome.

Fallout 3
Super Sledgehammers are large melee weapons in Fallout 3. They benefit from the Melee Damage Bonus provided by Strength.

Locations

 * Super Sledgehammers may be found on melee-oriented Super Mutant Masters and Overlords (With Broken Steel), and members of the Outcasts and the Brotherhood of Steel.
 * The friendly Super Mutant Fawkes carries a unique Super Sledgehammer, Fawkes' Super Sledge.
 * They may also be found on Slavers in Paradise Falls, specifically Ymir and Jotun.
 * There is 1 in the lower armory of the Mobile Base Crawler and 2 in the upper armory. (Broken Steel)
 * You can find one being used by a Super Mutant Master in the trench area in front of the capitol Building.