Cor Bon 40 S+W 140 Grain Jacketed Hollow Point -DPX Brass Cased Pistol Ammo, 20 Rounds, DPX40140/20

The reason is the homogenous solid copper projectile. Barrier blind is the new terminology for ammunition that outstandingly performs after penetrating a heavy barrier like auto glass or steel. DPX is the only ammunition that maintains 100percent of its weight after going through such barriers.