SIG V-Crown defensive rounds combine perfected material specifications and fine-tuned design innovations, including a stacked hollow point cavity, to deliver exceptional on-target energy with maximum weight retention and optimal expansion for ultimate stopping power.Specifications:Platform: PistolAmmo Application: DefensiveAmmo Type: Jacketed Hollow Point (JHP)Caliber: 40 S&WGrain Weight: 165 GrainQty Per Package: 50Test Barrel Length (in): 4.0 A 1/16Muzzle Velocity: 1,090 fpsMuzzle Energy: 435 ft-lbsBullet Diameter: 10.173 mmBullet Length: 14.351 mmLead Free: NoStaked Primer: No