With a ranged weapon, you can take advantage of any opening in your opponent’s defenses.
Benefit: While wielding a ranged weapon with which you have Weapon Focus, you threaten squares within 5 feet of you. You can make attacks of opportunity with that ranged weapon. You do not provoke attacks of opportunity when making a ranged attack as an attack of opportunity.
Normal: While wielding a ranged weapon, you threaten no squares and can make no attacks of opportunity with that weapon.
Can a character with Snap Shot and Combat Reflexes make multiple attacks of opportunity with a ranged weapon, assuming that loading the ranged weapon is a free action?
Yes. As long as you can reload your weapon with a free action you can reload your weapon as part of the ranged attack attack of opportunity you are making with the Snap Shot feat.
Pathfinder Roleplaying Game Ultimate Combat. © 2011, Paizo Publishing, LLC; Authors: Jason Bulmahn, Tim Hitchcock, Colin McComb, Rob McCreary, Jason Nelson, Stephen Radney-MacFarland, Sean K Reynolds, Owen K.C. Stephens, and Russ Taylor.