.44 Round, Magnum (Fallout 3)

The .44 Round, Magnum is the rarest Small Guns ammunition found in Fallout 3 (other than BBs, even rarer than the .308 caliber round used by the sniper rifle). Very few enemies carry weapons that use this ammunition, and as such it is virtually never found on bodies and must be either purchased or looted from stockpiles, where it is still uncommon.

Players who intend to make use of weapons chambered for .44 Magnum rounds would be well-behooved to take the Scrounger perk as soon as it is available. With this perk, although .44 Magnum ammunition remains less common than 10mm or .32 caliber ammunition, significant caches can be found, drastically improving the usefulness of those powerful weapons.

Weapons using this ammunition

 * Scoped .44 magnum
 * Lincoln's repeater
 * Blackhawk
 * Mysterious Stranger's .44 Magnum (console command only)
 * Callahan's magnum (Broken Steel)
 * Paulson's revolver (Mothership Zeta)

Locations

 * In Bethesda Ruins, in the West Offices, go up the left staircase and in the door to the right, there are some .44 rounds in the desk.
 * Turtledove Detention Camp, In the Administration Office there are around 10 .44 rounds next to a Scoped .44 Magnum in the room to the right when you come in (Point Lookout).
 * In the Engineering Core, next to Decompression Chamber, there are over 20 .44 rounds under a work bench (Mothership Zeta).
 * In the Cargo Hold, go along the conveyor belt until you see loads of ammo boxes, 2 of them should have .44 rounds inside of them (Mothership Zeta).
 * In the Tepid Sewers, in the metro tunnel where Rocksalt hangs out, ammunition boxes hold over 20 .44 rounds.
 * In the broken bow of Rivet City there are two ammo boxes with .44 rounds in them.
 * At a Super Mutant camp between the Tepid Sewers and Farragut West Metro Station there are two Ammo Boxes with .44 rounds in them.

Merchants
Several merchants will frequently have large quantities of .44 magnum ammo in stock (10, 15, even 20+):
 * Chief Gustavo in Tenpenny Tower.
 * Flak 'N Shrapnel's in Rivet City.
 * Sydney after completion with her as a companion in the Stealing Independence quest.
 * Lucky Harith, the Caravan Merchant dealing in weapons (after merchandise upgrades at Canterbury Commons).
 * Smiling Jack in Evergreen Mills.
 * Tulip in Underworld.
 * Knight Captain Durga in Citadel
 * Friday in The Pitt Downtown
 * Moira Brown in Megaton
 * Knick Knack in Little Lamplight
 * Michael Masters in Tenpenny Towers after helping the ghouls move into the tower.
 * Pronto in Paradise Falls, after bringing him 20 Chinese Assault Rifles.