Gunsmithing
Cool, fine just the way it is.
Grit
I feel like if it is going to be used in the final version, the base should be raised. Probably to 3 + Wis mod. Although Fraust does bring up a valid point, this should definitely be charisma-based since it is relying on force of personality (at least for the daring acts) of the gunslinger. The more I think about it though, grit should be taken out entirely and deeds should be more like rogue talents and rage powers. I foresee "kill stealing" a problem for gunslingers.
Deadeye
I do think more grit should be used for more range increments.
Pistol-whip
I agree, except maybe about adding enhancement bonuses to the attack. Shields can be used as weapons but you don't add their enhancement bonuses to attack rolls with them, so why should firearms? Just add rules for bayonets to the rules and then you can make melee attacks with firearms. Problem solved.
Utility Shot
I agree for the most part. Blast Lock seems pretty useful and the mechanics of it seem just fine. Item Scooting is cool but since it is impossible to miss a fine or diminutive item, that just seems a little odd to me. I just think if you're going to shoot at an object with a freaken bullet, you're going to do damage to it if you hit it so you either hit it and move it or you miss it. Stop bleeding works just fine IMO, just very situational.
Dead Shot
Should definitely be renamed and should definitely be clarified better.
Startling Shot
It does seem like a cheap ability. It should either be within a certain range or be adjacent to the gunslinger.
Targeting
It does seem to not fit into normal rules of play but it does seem like a REALLY cool ability. It definitely seems that now that rules for shot calling exist that what is to stop others from wanting to do it with a bow, crossbow or even a throwning axe?
Evasive
I don't see why they get Improved Uncanny Dodge. I also think they should get evasion at a lower level too.
I also think that gunslingers should get more feats, not a necessity because I think that might make them too much like fighters.
These are my thoughts.