Federal 5.56x45mm XM855F 62gr 500rd Case
Federal XM855F SS109 62gr. .223 Green Tip 500rd case. Packed 500rds to a case, loose packed. Exact muzzle energy and velocity never chronographed, but basically typical figures for SS109, Military grade, very limited quantity:
Brass-cased, Boxer-primed, reloadable, non-corrosive and waterproof. .
Full metal jacket boat-tail bullet with hardened steel penetrator.