Cor Bon 380 Auto 80 Grain Jacketed Hollow Point -DPX Brass Cased Pistol Ammo 20 Rounds. 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. Specifications for Cor Bon 380 Auto 80 Grain Jacketed Hollow Point -DPX Brass Cased Pistol Ammunition: Manufacturer: Cor Bon Caliber: .380 ACP Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 80 grain Cartridge Case Material: Brass Muzzle Velocity: 1050 ft/s Muzzle Energy: 196 ft-lbs Application: Self-Defense Package Type: Box Included Accessories: None Primer Style: Centerfire Lead Free: Yes Features of Cor Bon 380 Auto 80 Grain Jacketed Hollow Point -DPX Brass Cased Pistol Ammunition All DPX bullets are also certified lead free and can be used in California. The DPX bullet is 100percent solid copper bullet. Internal serration cuts have been added instead of traditional external serrations. These internal serration cuts allow the copper bullet to fully expand making the bullet double diameter with 6 razor sharp pedals. The research and development team at COR BON used the protocol from the FBIs testing procedures to formulate the DPX defensive line of ammunition. They achieved soft tissue penetration of 12-18 with reliable and consistent expansion. The recovered bullets retained 100percent of the original size and weight when recovered from the test medium of 10percent ballistic gelatin and shot through four layers of 10oz denim barrier. The permanent crush cavity is also considerably larger than that of a typical JHP. Package Contents: Cor Bon 380 Auto 80 Grain Jacketed Hollow Point -DPX Brass Cased Pistol Ammunition Cor Bon DPX38080/20: 380 Auto 80 Grain Jacketed Hollow Point -DPX Brass Cased Pistol Ammo 20 Rounds