This case package offers 4, 150 round boxes for only $299.

Manufacturer Number: XM855BK150
Caliber: 5.56 NATO
Bullet Weight: 62 Grains
Bullet Type: M855 (SS109 Steel Penetrator) Full Metal Jacket Projectile
Muzzle Velocity: 3025 fps
New Reloadable Annealed Brass Casings

029465065164 – 5.56 NATO bulk centerfire ammunition