Winchester's value pack of 150 rounds offers an affordable solution for those seeking high-quality ammunition. This 5.56mm NATO caliber is designed for reliable performance in a variety of applications. The full metal jacket bullet style provides consistent expansion and penetration. With a muzzle velocity of 3100 fps, this ammunition delivers impressive range and accuracy. Fast shipping ensures you get the ammo you need quickly. The green-tip M855 round has gained popularity due to its improved penetration characteristics over older projectiles. Product Features and Specifications: Caliber: 5.56mm NATO Bullet Weight: 62 Grain Bullet Style: Full Metal Jacket Muzzle Velocity: 3100 fps Muzzle Energy: 1323 ft/lbs Casing: Brass