40k RPG Master Armoury -Dumdum Bullets wpn has Pen >0

Requirements
Weapon category	Ranged
Weapon class	Pistol
Weapon type	Solid Projectile
Damage type	[IMPACT]
Modifiers
Damage bonus	+2
Damage type	Energy
Penetration	-2
Aquisition
Cost	0
Availability	Average
Source	Black Crusade - Black Crusade Core Rulebook pg. 172