Scoped .44 Magnum

Scoped .44 Magnum is a version of the .44 Magnum Revolver upgraded with a scope. It is likely that this is a reference to the similar weapon in Road Warrior. You can get this from the corpse of the first behemoth outside the radio station. You can get this weapon from Vance during the Blood Ties quest. It is in his office in a safe in the wall.You can also get another one from the Those! quest off a skeleton in the subway. There is also one in a locked safe in the Germantown Police Department building. There is yet another one in the broken bow of Rivet city. You guessed it. There's another one in the armory in Megaton. Assuming you didn't blow it up.