Sniper/Fallout 2

Sniper is a perk in Fallout 2.

Effects
Any successful hit in combat with a ranged weapon will be upgraded to a critical hit if the player also makes a Luck roll. Combine with Better Criticals for improved effect!

Furthermore, it adds another Luck roll of (10*Luck). As a result, 10 LK means every hit is automatically a critical hit and More Criticals becomes useless.