Mini Nuke (Fallout 3)

The mini nuke is a roughly football-sized tactical nuclear warhead designed for use in a nuclear catapult. It appears in Fallout 3 and Fallout: New Vegas.

A nuclear catapult is a device made to launch small nuclear payloads that are not self-propulsive. The mini nuke is used as ammunition for the Fat Man and the Experimental MIRV.

Characteristics
Mini nukes are the single most expensive piece of ammunition, ranging from 250 to 400 caps apiece to buy, depending on your Barter level. They are also ammunition for the single most powerful weapon in the game, doing many times more damage than any other weapon even at low Big Guns levels.

Portions of exploded mini nukes are used in the model of Raider Ordinance Armor in The Pitt, even though there are no actual mini nukes in that add-on.

Weapons using this ammunition

 * Fat Man
 * Experimental MIRV

Fallout 3
There are a total of 70 free mini nukes in Fallout 3. 2 more can be obtained by doing various quests. Another 2 are in random encounters, one of which only occurs after you complete Reilly's Rangers. Another one can be found in Operation: Anchorage, 13 in Broken Steel, 8 in Point Lookout and two in Mothership Zeta, making for 98 in total with all add-ons.

Available infinitely

 * 4 of the 5 super mutant behemoths can carry a single mini nuke. The Evergreen Mills behemoth cannot.
 * One way of obtaining mini nukes is to kill super mutant overlords which are found throughout the Capital Wasteland. Super mutant overlords can only be found with Broken Steel installed.
 * Flak 'N Shrapnel's in Rivet City frequently restock with mini nukes, to the extent that one can add up to six of them with every visit.

Fallout: New Vegas
Miniatomówka Ядерный выстрел