Sig Sauer E9MMA1ROSE20: Designed for Optimum Performance in Short Barrel Pistols - Optimized Terminal Performance Penetration Depth Expansion and Weight Retention - Reduces Felt Recoil - Softer Shooting Performance for Better Compatibility with Lightweight Short-Barreled Pistols - 1050 ft/sec 282 ft-lbs Muzzle Energy from 3.1 Barrel - Caliber 9mm Luger - Bullet Design V-CROWN Jacketed Hollow Point - Bullet Weight 115 GR - Case Material Nickel Coated Superior Brass - Muzzle Velocity 1050 FT/SEC - Muzzle Energy 282 FT-LBS