Winchester USA Features The Winchester USA line loads this 5.56x45mm NATO cartridge with a 62 grain Full Metal Jacket Green Tip bullet launched at 3060 fps for 1289 ft lbs of muzzle energy at the muzzle. That combination of velocity and bullet weight gives shooters flat-shooting consistent ballistics suited to range training practice drills and general volume shooting. Brass casings keep the ammunition reliable across a wide range of 5.56-chambered rifles and carbines cycling cleanly through gas guns that depend on consistent case dimensions. The Green Tip FMJ bullet design is a widely recognized training and practice projectile giving shooters dependable functioning without the cost premium of specialty defensive ammunition. This listing is packaged as a 1000-round case making it a practical option for shooters who go through large volumes of ammunition at the range or in training classes. Buying in this quantity means fewer reorders and more consistent lot-to-lot performance across a long shooting session. Winchester s USA line has built a reputation for dependable function at an accessible price point which is exactly what high-round-count shooting demands. For shooters instructors or ranges that need a steady reliable supply of 5.56 training ammunition the Winchester USA 5.56 62 Grain Green Tip case is available for sale at GrabAGun. Winchester USA Specifications Manufacturer: Winchester Model: USA Caliber: 5.56 NATO Bullet Weight: 62 Grains Bullet Type: Full Metal Jacket Green Tip Case Material: Brass Rounds Per Box: 500 Available At: GrabAGun