Federal Premium® Hydra-Shok® has proven itself for self-defense since 1989. Hydra-Shok Deep builds off the time-tested platform with design improvements that better meet modern performance measurements. The bullet features a more robust center post and a core design that penetrate to optimal depths through the barriers most commonly encountered inself-defense situations. – Hits optimum penetration depths through barriers encountered in self-defense situations – Iconic center post design has been improved for better more consistent expansion – Specially formulated propellant – Extremely reliable primer – Modern defense ammunition option for 45 Colt – Cartridge-optimized controlled-expansion projectile provides the perfect balance between expansion size and penetration depth – Performs through all barrel lengths – Specs – Caliber 45 Colt – Grain Weight 210 – Bullet Style Hydra-Shok Deep Jacketed Hollow Point – Muzzle Velocity 913 – Test Barrel Length In 6-V – Package Quantity 20 – Usage Self-Defense