Power Shock - Damage 1.5 normal.
Hollow Point - Missile Special Effects X 2
Jacketed - Missle Special Effects X 0.5
Frangible - Damage 1.5 normal
Armor Peircing - Barrier Penetration X 2
Note: In Aftermath!, bullets do not have any effect on target armor class, only barrier values due to the way damage is calculated.