So I'm not so good when it comes to tracking down elusive rules, and I'm making a Gunslinger and am trying to interpret these documents.
According to the Pathfinder Society Roleplaying Guide Guide:
Ranks assigned to Craft skills are used only to perform Day Job checks, not to craft mundane items, with the following exceptions.• Alchemists can use Craft (alchemy).
• Gunslingers can use Craft (gunsmithing).
• Investigators can use Craft (alchemy).
According to Additional Resources:
The following two feats function diﬀerently in Pathfinder Society Organized Play than they do in regular games:Gunsmithing does not grant the ability to craft firearms, ammunition, or black powder. Rather, it allows the purchase of bullets, pellets, black powder, and alchemical cartridges (with 1 rank in Craft [alchemy]) at the listed reduced price, but does not grant a discount on the purchase of any firearm. Resold items gained through this feat are worth half the actual cost paid, not half the regular market value for the item. No PC can purchase a gun without this feat, even if they possess the Amateur Gunslinger or Exotic Weapon Proficiency (firearm) feats.
I think it is worth noting that Additional Resources only refers to the FEAT of Gunsmithing, not Craft (Gunsmithing). If they wanted this to additionally cover Craft (Gunsmithing), they should have added it to the feat description in Additional Resources. To me, the feat is only intended to allow non-Gunslingers to purchase firearms and firearms accessories. Additionally, the feat Gunsmithing, plus a single rank in Craft (Alchemy) already allows the Gunslinger to purchase all necessary ammunition for the same price as crafting it.
So. What does Craft (Gunsmithing) do for Gunslingers? Or is only intended as a means to create ammunition should an appropriate merchant be unavailable?