Product DescriptionDoubleTap Ammunition Colt Defense rifle ammo in .300 AAC Blackout is built to be very accurate and hard-hitting, making it a strong choice for personal defense applications. This load is designed to function reliably whether you are running your rifle suppressed or unsuppressed. It features a 125-grain Sierra TMK projectile with a listed muzzle velocity of 2400 fps and muzzle energy of 1599 ft-lbs.Product Highlights .300 AAC Blackout defensive rifle ammunition engineered for accuracy and terminal performance 125 grain Sierra TMK projectile for consistent downrange performance Rated 2400 fps muzzle velocity for strong energy delivery Listed 1599 ft-lbs muzzle energy Designed to run reliably with a suppressor or withoutSpecs Brand: DoubleTap Ammunition Product Line/Model: Colt Defense Caliber: .300 AAC Blackout Bullet Weight: 125 gr Bullet: Sierra TMK Muzzle Velocity: 2400 fps Muzzle Energy: 1599 ft-lbs Rounds per Box: 20 Case Type: Brass UPC: 753387048553 Manufacturer Part Number: 300BLK125CTDisclaimer: 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 products manufacturer.