Product DescriptionFederal Premium Personal Defense Hydra-Shok Deep handgun ammunition builds on the proven Hydra-Shok platform with modern design improvements to deliver consistent self-defense performance. The Hydra-Shok Deep jacketed hollow point features an improved, more robust center post and a core design engineered to penetrate to optimal depths through common self-defense barriers while promoting reliable expansion. Each box contains 20 rounds of .40 Smith & Wesson (S&W) 165 grain centerfire pistol cartridges.Product Highlights Hydra-Shok Deep Jacketed Hollow Point (JHP) bullet design for consistent expansion and terminal performance Improved iconic center-post construction and core design for modern penetration standards Specially formulated propellant paired with an extremely reliable primer for dependable ignition Optimized to reach ideal penetration depths through barriers commonly encountered in self-defense situations Convenient 20-round box (10 boxes per case)Specs Brand: Federal Manufacturer Part Number: P40HSD1 UPC: 604544642872 Cartridge/Caliber: .40 S&W (.40 Smith & Wesson) Bullet Weight: 165 grain Bullet Type: Hydra-Shok Deep Jacketed Hollow Point (JHP) Muzzle Velocity: 1050 fps (test barrel length: 4 in) Muzzle Energy: 404 ft-lbs Primer Style: Centerfire Case Material: Nickel-plated brass Rounds Per Box: 20 Boxes Per Case: 10 Intended Use: Self-defense / personal defense Country of Manufacture: USADisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.