I have yet to see an infinite ammunition enhancement for a firearm, except what Ptolus has for the demon gun. The demon gun as written is basically a +1 magical gun with unlimited ammunition and costs more than 24,000 gp. A +1 dragon pistol would cost a bit more than 2,000gp, so I would guess that the unlimited ammunition enhancement would cost somewhere in the ballpark of 20,000gp. The ring that Luna has creates only arrows from what I understand, while the demon pistol would be able to fire a magical round as fast as your character can pull the trigger, for quite a bit more punch (1d12+1 points of damage a shot), and from the description your magical rounds can harm incorporeal creatures. The rapid fire option that allows a firearm to have six shots instead of 1 is a +2 enhancement for cost purposes, but does not necessarily mean that the weapon has to be magical. A +1 rapid fire dragon pistol would cost more than 18,000gp. However, a quick loading enhancement for a crossbow is only a +1 enhancement, but still requires a move action to reload and gives the crossbow 100 rounds of ammunition. I think this is a case of there being too many source books out there, and I can't claim that any of this is fair, but at the same time I am reluctant to go outside the rules and come up with another gun that can fire an infinite amount of times as firearms are big among both PCs and existing NPCs and if I allow for a change we'll be here forever making modifications.
Lorthanoth: True, but one team are a bunch of foreigners in Ptolus, with loyalty to the Imperial government in Tarsis, and so suspect.
Bedford: I'm going to throw in a house rule that I believe is supported by DnD rules, but heck if I can find them. Anywho, lycanthropes can be harmed by magical weapons as well as silver, but damage by silver weapons cannot be regenerated. Damage from silver weapons can heal at a rate of 1hp a day, however, or be magically healed. This makes a silver longsword +1 different from a silver longsword or longsword +1.
Frukathka: I don't have the complete book of Eldritch Might. Does Devlin's Ring create magical or non-magical items? Also, for your weapons and armor it looks like you paid for the enhancements, but not for the items and upgrading them to masterwork.
