The Corbon DPX 45 Colt ammunition delivers superior defensive performance with 225-grain +P solid copper bullets designed for maximum stopping power and barrier penetration at 1 200 feet per second.Corbon DPX 45 Colt Defensive Ammunition225 Grain +P Deep Penetrating X (DPX) bullets100% solid copper construction maintains full weight retentionInternal serration cuts for controlled expansion to double diameterBarrier blind performance through auto glass and steel1 200 feet per second muzzle velocity20 rounds per boxEngineered for law enforcement and personal defense applications this ammunition provides reliable expansion with 6 razor-sharp petals while maintaining penetration through heavy barriers.