I mean I'm sure someone has said it before. Late game pistol damage is awful. So since pistols rely on dexterity, and have lots of benefits with initiative. I think it be best if there was a feat that capitalized on that synergy.
[Feat Name]-[Mid-Late Game Attribute and skill requirement] : This feat adds the players imitative score as a flat damage bonus to all ballistic firearms, as well as adding that same score to critical damage bonus {multiplicative}
Requirements:
Gunslinger Feat
Dex: 10 or 12