Product DescriptionHornady Critical Duty 10mm Auto ammunition is built for personal protection and duty use where reliable performance through common urban barriers matters. It is loaded with Hornady's tough FlexLock projectile for barrier-blind performance and consistent terminal results, and it comes in a convenient 20-round box.Product Highlights 10mm Auto duty/self-defense handgun ammo engineered for barrier penetration 175 grain Hornady FlexLock bullet designed to resist clogging and promote consistent performance Rated muzzle velocity: 1,160 feet per second Nickel-plated brass cases for smooth feeding and corrosion resistance 20 rounds per box-ideal for duty carry rotation and function testingSpecs Brand: Hornady Product Line: Critical Duty Caliber: 10mm Auto Bullet Weight: 175 Grain Bullet Type: FlexLock Muzzle Velocity: 1,160 fps Muzzle Energy: 523 ft-lbs Bullet Diameter: 0.400 in Case: Nickel-plated brass Primer Type: Boxer Rounds Per Box: 20 Country of Origin: USA UPC: 090255912562 Manufacturer Part Number: 91256Disclaimer: 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.