Fast Shot

Fast Shot is a Fallout, Fallout 2 and Fallout Tactics Trait.

You don't have time to aim for a targeted attack, because you attack faster than normal people.

J.E. Sawyer's Fallout RPG
During the charge phase, you can fire a firearm instead of charging (eliminates you from the action phase of that round), but your critical hits with firearms always come in 6 point increments.