I'm GMing a campaign and our gunslinger seems pretty powerful. Does everything check out?
http://i.imgur.com/o7QA92d.png
Reloads as free action with Rapid Reload + Fast Musket + Alchemical cartridges. Uses Abundant Ammunition to get unlimited Alchemical Cartridges in combat.
Also: does the double shot action of the Double-Barrel musket require rolling for each shot, or rolling once for each 2 shots (like Manyshot with bows)?