Weapon Penetrate

Weapon Penetrate is a weapon perk in Fallout and Fallout 2.

Effects
Used for powerful automatically penetrating weapons, this perk removes 85% of the target's Damage Threshold. The reduction is always rounded down. For example, the Advanced Power Armor has a Damage Threshold of 15 against normal damage. When attacked with a Needler Pistol, which has this perk, that Damage Threshold undergoes a reduction of 15 x .85 = 12.75 points, which is rounded down to 12, resulting in a Damage Threshold of 15 - 12 = 3. That is already 12 more points of damage going through.

Fallout

 * .223 pistol
 * Ripper
 * Power fist