Originally Posted by
Amiel
The many worlds of conventional fantasy have yet to fully embrace firearms; with so much focus being on the convenient application of arcana, this has caused technology to be dismissed as something of a novelty and fool's wish.
This attitude is changing slightly (with increasing supporters each year), and the proponents of such weapons are waiting in anticipation for a sweeping revolution that will engulf the myriad worlds of D&D in a golden renaissance.
Accuracy and Aiming
Fortunately, and perhaps unfortunately, firearms are exceedingly easy to use; they force no additional feats to be taken. However, as with all things, experience brings great benefits.
Aiming must be done with the Concentration skill, with every 5 ranks in the skill conferring a +2 bonus to accuracy.
Accuracy is decided with a DC 15 Dex roll (10 + character's Dex modifier), with focused targeting imposing a penalty depending on the body location; headshots impose a -4 penalty, while the extremities (legs and arms) impose a -2 penalty. Shots aimed at the torso are resolved per normal.
Such firearms may have targeting reticules, sighting down these confers a +2 bonus to accuracy.