NovX Ammunition Pentagon 9mm Luger 115 Grain Monolithic Copper Hollow Point Stainless Steel Cased Pistol Ammo 20 Rounds. These environmentally safe lead-free projectiles deliver petal expansion to twice the bullet diameter. The Pentagons higher velocities and greater impact energy than conventional composite bullets are credited to the monolithic copper bullets lighter weight and the NovX patented 2-piece stainless steel cartridge case design. The net result is a defensive cartridge that is lighter to carry concealed easier to shoot provides for fast sight picture acquisition on follow-up shots through reduced muzzle flip and superior terminal performance to quickly end defensive engagements. Specifications for NovX Ammunition Pentagon 9mm Luger 115 Grain Monolithic Copper Hollow Point Stainless Steel Cased Pistol Ammunition: Manufacturer: NovX Ammunition Caliber: 9mm Luger Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 115 grain Cartridge Case Material: Nickel Alloy Stainless Steel Muzzle Velocity: 1300 ft/s Muzzle Energy: 430 ft-lbs Application: Self-Defense Package Type: Box Fabric/Material: Lead-Free Case Material: Stainless steel Package Contents: NovX Ammunition Pentagon 9mm Luger 115 Grain Monolithic Copper Hollow Point Stainless Steel Cased Pistol Ammunition NovX 9CP115-20 Pentagon 9mm Luger 115 Gr Monolithic Copper Hollow Point 20 Bx/