Product DescriptionFederal Premium Trophy Copper centerfire rifle ammunition is built for hunters who want pinpoint accuracy and aggressive, reliable terminal performance. The copper, polymer-tipped Trophy Copper bullet is engineered to retain up to 99% of its weight for deep penetration on a wide range of medium and big game. Each box includes 20 rounds of .280 Ackley Improved ammunition, with 10 boxes per case.Product Highlights Trophy Copper polymer-tipped copper bullet designed for aggressive expansion and deep penetration Up to 99% weight retention for consistent performance on medium and big game .280 Ackley Improved, 140 grain hunting load Nickel-plated brass cases for smooth feeding/extraction and corrosion resistance 20 rounds per box (10 boxes per case) for convenient stocking and hunting-season prepSpecs Brand: Federal Line: Federal Premium Cartridge/Caliber: .280 Ackley Improved Bullet Type: Trophy Copper (polymer-tipped copper) Bullet Weight: 140 grain Rounds per Box: 20 Boxes per Case: 10 Case Material: Nickel-plated brass Muzzle Velocity: 3,075 fps Muzzle Energy: 2,939 ft-lbs Primer: Boxer Reloadable: Yes Corrosive: No Country of Origin: USA UPC: 604544659528 MPN: P280A1TC1Disclaimer: 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.