Psionic Bullet (D20 Modern Feat)
From D&D Wiki
Psionic Bullet [Class]
Imbues bullets with psionic energy as well as manifests psionic energies within the body to increase effectiveness with a pistol or other type of gun.
Prerequisite: Psionic Fist Level 2
Benefit: Add your Cha mod to attack and damage rolls with guns, bullets also gain a DR penetration equal to your Cha mod. Do not use your Dex mod for attack rolls with this feat.
Normal: You use your Dex mod for attack rolls, there is no damage bonus or DR penetration for guns normally.