Product DescriptionUnderwood Ammo XTP is a high-performance .500 S&W Magnum load built for power and accuracy in demanding hunting and defensive applications. It features Hornady eXtreme Terminal Performance (XTP) jacketed hollow point bullets engineered for deep penetration, controlled expansion, and excellent downrange consistency. Each round is loaded in nickel-plated, boxer-primed, reloadable brass for smooth feeding and enhanced corrosion resistance, and uses flash-suppressed powder to help preserve night vision in low-light conditions.Product Highlights Hornady XTP jacketed hollow point design for controlled expansion and deep terminal penetration Nickel-plated brass cases for improved feeding, corrosion resistance, and easier cleanup during reloading Flash-suppressed powder helps reduce muzzle flash in low-light environments High-velocity .500 S&W Magnum performance: 350gr projectile at 1912 fps (2842 ft-lbs muzzle energy) New production, non-corrosive, boxer-primed, reloadable brass constructionSpecs Brand Name: UNDERWOOD AMMO Cartridge: .500 S&W Magnum Bullet Type: Jacketed Hollow Point (Hornady XTP) Bullet Weight: 350 grains Bullet Diameter: 0.5 Muzzle Velocity: 1912 fps Muzzle Energy: 2842 ft-lbs Ballistic Coefficient (G1): 0.145 Sectional Density: 0.2 Case: Nickel-plated brass; boxer-primed; reloadable Corrosive: No (non-corrosive) Lead Free: No (contains lead) Rounds Per Box: 20 Country of Manufacture: United States of America UPC: 816874021078 Manufacturer Part Number: 348Disclaimer: 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.