Planejammer Campaign Setting
Guns are commonplace. Early firearms are seen as antiques, and advanced firearms are widespread. Firearms are simple weapons, and early firearms, advanced guns, and their ammunition are bought or crafted for 10% of the cost listed in this chapter. The Gunslinger loses the gunsmith class feature and instead gains the gun training class feature at 1st level.
Advanced Firearms: Advanced firearms resolve their attacks against touch AC when the target is within the first five range increments, but this type of attack is not considered a touch attack for the purposes of feats such as Deadly Aim. At higher range increments, the attack resolves normally, including taking the normal cumulative –2 penalty for each full-range increment. Advanced firearms have a maximum range of 10 range increments.
Advanced firearms are chamber-loaded. It is a move action to load a one-handed or two-handed advanced firearm to its full capacity.
Advanced firearms can misfire, but when they do, they only gain the broken condition. A further misfire does not cause advanced firearms to explode.
From Ultimate Combat