Winchester SS109 Green Tip PenetratorLoaded by Winchester using Lake City Brass and packed in the Winchester white box, this M855, SS109 ammunition features a 62 grain full metal jacket bullet with a lead alloy and steel core. These green tip rounds are designed for use with the AR platform. This is the same ammo Winchester has been manufacturing for issue to the American Military for many years, and the reliability of Winchester M855 is legendary. If you need Legendary reliability, look no further than Lake City Winchester M855 5.56 NATO Green tipFeatures and Specifications:Caliber:5.56x45mm NATOBullet Type: Full Metal JacketBullet Weight: 62 GrainLake CIty StampedSS109 Green Tip PenetratorRounds: 1000 RoundsMuzzle velocity: 3060 fpsMuzzle energy: 1288 ft/lbsUses: Target, Training, Plinking or as back up for your primary defensive loads. At close-range velocities, these bullets tend to fracture at the cannelure into two or three main pieces.