Feat: Stunning Shot

Stunning Shot [General]
You can inflict wounds that stun foes.
Prerequisites: Greater Weapon Focus (projectile weapon), Sharpshooter level 15.
Benefits: Choose one type of projectile weapon for which you have already selected Greater Weapon Focus. When you declare you are using this feat before rolling an attack, a successful Stunning Shot inflicts normal damage and stuns the target for one round. If you miss, the Stunning Shot is wasted. You may attempt a Stunning Shot once per day for every four levels you have attained, and no more than once per round. A stunned character can’t act, loses any Dexterity bonus to AC, and takes a –2 penalty to AC. Constructs, oozes, plants, undead, incorporeal creatures, and creatures immune to critical hits cannot be stunned by this feat.
Special: Sharpshooter-only bonus feat