Double Tap

You can make two quick shots with a firearm as a single attack.
  Prerequisites: Dexterity 13, Point Blank Shot.
 
  Benefit: When using a semiautomatic firearm with at least wo bullets loaded, you may fire two bullets as a single attack against a single target. You receive a -2 penalty on this attack, but you deal +l die of damage with a successful hit. For example, a firearm that normally deals 2d6 points of damage instead deals 3d6.
  Using this feat fires two bullets and can only be done if the weapon has two bullets in it.