Huh, found Protectron's Gaze. Its inacurate at short range, as if it wasn't a pistol but a laser shotgun, but other than that it does decent damage. It also uses laser minigun ammo, so I've got plenty of that (around 889).
Heh, turns out that the very rare energy weapons are effective, you just need to figure out where to find them. I hate cheating at exploration, but I need some sort of decent weaponry.
Playing a lot reveals the more broken side of FO3. Especially if you do quests the "evil" way, which usually includes killing important people.
Which is a big problem when quests get bugged.