| Wonderstell |
You'd need the Bolt Ace's "Sharp Shoot" to target touch AC with a crossbow, and I'm not sure that Amateur Gunslinger allows you to pick deeds from archetypes.
So I'd go with option B.
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If these alchemists are low-lv, you might consider dipping into Unarmed Fighter instead of Gunslinger (Int and Wis-based classes, not so great synergy).
This would allow you to take Overwatch Style without meeting the prerequisites. A normal (non-human) alchemist would have to wait until level 5 before they'd be able to make two crossbow attacks per round, while Overwatch style allows them to make two attacks from level 1.
Also, you could just take EWP: Orc Hornbow instead of Rapid Reload at level 1.
| Wonderstell |
Oh, I see. You might consider the Concentrated Fire feat, then.
It's a teamwork feat that allows you and an ally to effectively roll twice on your readied ranged attacks. (available to elves and half-elves)
I used it recently on a ranged vital Strike build, when you really want your one attack to hit.
Syries
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Something I had originally planned on doing with my alchemist was a 1 level dip and use a pistol with explosive missile. Only 20ft range but that's usually where I ended up anyway with targets.
Grenadier archetype for the ability to also put an alchemist fire on the bullet, targeted bomb admixture extract for 1d6 piercing damage, 1d6+int mod fire damage, and bomb damage+2x int.
I would go with the single dip in gunslinger, personally.