Product DescriptionDoubleTap Ammunition Colt Defense 10mm 180gr Jacketed Hollow Point (JHP) is designed to balance power and controllability for defensive use. It is built for quick follow-up shots and consistent terminal performance, delivering approximately 16.0 inches of penetration and .75 inches of expansion. Published performance is 1150 fps and 529 ft/lbs from a 5.0-inch barrel.Product Highlights 10mm defensive handgun ammunition engineered for a balance of power and controllability 180 grain Jacketed Hollow Point (JHP) bullet for expansion-focused performance Published ballistics: 1150 fps / 529 ft-lbs (from a 5.0" barrel) Performance notes: ~16.0" penetration and ~.75" expansion 20-round box (1000 rounds per case)Specs Brand: DoubleTap Ammunition Model/Line: Colt Defense Caliber: 10mm Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 180 gr Muzzle Velocity: 1150 fps (5.0" barrel) Muzzle Energy: 529 ft-lbs (5.0" barrel) Penetration (stated): 16.0" Expansion (stated): .75" Rounds Per Box: 20 Rounds Per Case: 1000 UPC: 091037282644 Manufacturer Part Number: 10M180CT Country of Manufacture: United States (American Made)Disclaimer: 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.