Description This Federal American Eagle 5.56x45mm NATO ammunition is perfect for target shooting, training, and practice. Federal American Eagle 5.56x45mm NATO is loaded with a 55 grain Full Metal Jacket Boat Tail bullet. These rounds consist of sealed primers which is ideal for long term storage and moisture protection. This Federal American Eagle is packaged in 10-round stripper clips, with 9 stripper clips per box for convenient storage, transport, and loading. This Federal 5.56x45mm ammunition is manufactured in the Lake City Plant currently operated by Federal ATK. It is made to military specifications which requires the cases to be annealed. Unlike civilian production ammunition, the military requires to see evidence of the annealing on the round itself, causing the cases to appear to be discolored. This is done on purpose in order to meet the military requirement for overall strength and durability of the finished round. Federal American Eagle 5.56x45mm is new production, non-corrosive ammunition that features reloadable brass cases and boxer primers. Federal American Eagle ammo is packaged in boxes of 90 rounds. Specifications Manufacturer: FEDERAL AMMO Caliber: 5.56X45MM NATO AMMO Bullet Type: Full Metal Jacket Boat Tail Muzzle Velocity: 3240 fps Muzzle Energy: 1282 ft. lbs. Primer: Boxer Casing: Brass Casing Ammo Rating: Target Shooting, Training & Practice 5.56x45mm NATO Ammo Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.