Product DescriptionFrontier Cartridge Military Grade rifle ammunition is American made and built for consistent, dependable performance across a wide range of shooting applications, from training and target work to varmint hunting. This 5.56x45mm NATO load features a 62-grain full metal jacket (FMJ) bullet and is assembled with brass cartridge cases, military-grade Boxer primers, and quality propellant for reliable function and accuracy. Packaged 20 rounds per box, 25 boxes per case.Product Highlights Military-grade 5.56x45mm NATO centerfire rifle ammunition designed for reliable feeding and consistent performance 62-grain full metal jacket (FMJ) bullet ideal for range, training, and general-purpose use Brass cases with Boxer primers-non-corrosive and reloadable for added value American-made ammo utilizing modern loading techniques and strict quality control Convenient packaging: 20-round box (25 boxes per case)Specs Caliber: 5.56x45mm NATO Primer Type: Centerfire (Boxer; military-grade) Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 62 grain Cartridge Case Material: Brass Muzzle Velocity: 3060 ft/s Muzzle Energy: 1289 ft-lbs Ballistic Coefficient (G1): 0.274 Test Barrel Length: 20 in Corrosive: No Reloadable: Yes Rounds per Box: 20 Boxes per Case: 25 Country of Origin: USA UPC: 090255711516 Manufacturer Part Number: FR260 Brand: Frontier CartridgeDisclaimer: 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.