Winchester celebrates its commitment to American freedom with the USA VALOR ammunition series. From World War I through modern day deployments Winchester remains steadfast in its support of U.S. Warfighters as the largest small caliber enterprise in the world. – Caliber: 5.56x45mm NATO – Bullet Type: Full Metal Jacket Green Tip – Bullet Weight: 62 gr – Muzzle Energy: 1289 ft / lbs – Muzzle Velocity: 3060 fps – Rounds Per Box: 125