Thanks for the reply!
Automatic Pistol is on pg 146 of the dungeon master guide, each could fire 15 times before needed reloaded, inserting a new magazine is a move action.
I considered doing a swift hunter build, but it looks like being a good gun slinger with everything RAW is going to be pretty feat hungry. Also at level 8, a swift hunter build would only have +2d6 base skirmish bonus, what i've made has a flat +20 bonus to damage rolls, or +10 against things that cannot be crit.