.308 Caliber Round (Fallout 3)

The .308 Caliber Round is a Small Guns ammunition found in the game. It is only used with the Sniper Rifle and its unique variants.

Weapons using this ammunition

 * Sniper Rifle
 * Reservist's Rifle
 * Victory Rifle

Locations
The .308 Caliber Round, essentially the civilian version of the well-known 7.62x51mm NATO round, is the third rarest small guns ammunition found in the game, next to .44 Round, Magnum, and the BBs; very few enemies carry Sniper Rifles, and many are located in hard to reach places or have only a small number of rounds to be looted. The Hunting Rifle largely provides the same effect while using the much more common .32 Caliber Round, making the Sniper Rifle and variants limited in effectiveness until the player gathers a stockpile of ammunition.


 * Bethesda Ruins. There is a sniper perched in a window of a dilapidated office building.  While the Sniper Rifle itself is in poor condition, there are at least 50 .308 caliber rounds (with the Scrounger perk) to be looted from ammunition boxes by the window and from the dead Raider's corpse.
 * There is also a Sniper Rifle in a Hollowed-Out Rock south-east behind Megaton with 10 .308 Caliber Rounds, some stimpaks, and a note.
 * Another set of .308 boxes can be found in Minefield near Arkansas.
 * 10 308. are in an Ammunition Box at the sniper perch near a Wasteland Tent.
 * Point Lookout, In the Administration Office, Turtledove Detention Camp, there are at least 50 .308 Caliber Rounds in the room to the left.

Operation Anchorage offers unlimited ammo. When you restock your ammo drop it and restock again, then drop your ammo again and so on. If you do it for about 15 min. you will have 5000-7000. Then use the Operation Anchorage glitch to get it out of the simulator.

Vendors

 * Various vendors such as Chief Gustavo, Flak and Shrapnel, Knight Captain Durga, Karl, Moira Brown and others will sell this ammo.