.44 Magnum revolver (Fallout 2)

The .44 Magnum Revolver is a small gun in Fallout 2 and Fallout 3. In Fallout 2, can be upgraded to the .44 Magnum (Speed Load). This weapon returns in Fallout 3, along with a scoped version.

In-game description
Being that this is the most powerful handgun in the world, and can blow your head clean-off, you've got to ask yourself one question. Do I feel lucky? Well, do ya punk?

Location
Flick in the Den sells this weapon, as does Happy Harry in Vault City.

Easter Egg
The Fallout 2 description of this weapon is easter egg from Dirty Harry film.