500 rounds of Federal American Eagle 40 grain TMJ (full metal jacket) cartridges in caliber 5.7x28mm. Packaged 50 Rounds per box, 10 boxes per 500 round case. I don't know if this is still true, but in the past, this ammunition was manufactured in the U.S.A. by Fiocchi "in partnership" with Federal. Fiocchi also makes the FNH 5.7x28mm ammunition.
Federal American Eagle Ammunition is designed specifically for target shooting, training and hunting. This ammo is loaded to the same exacting tolerances as Federal Premium Ammunition offerings, but at a more practical price for high volume, economical target shooting. The Total Metal Jacket bullet is designed to completely encase the lead core of the bullet making it an ideal and safe choice for indoor training applications. This ammunition is new production in reloadable brass cases.
Caliber: 5.7x28mm FN
Bullet Weight: 40 Grain
Bullet Style: Total Metal Jacket
Case Type: Brass
Muzzle Velocity: 1655 fps
Muzzle Energy: 243 ft. lbs.