1000 rounds 556, also known as “556 ammo,” “556 1000 rounds,” “556 bulk ammo,” and “556 ammo for sale” is a Winchester USA 556 NATO ammunition

Features and Specifications:
Manufacturer Number: Q3131
Caliber: 556 NATO
Bullet Type: Full Metal Jacket (FMJ)
Bullet Weight: 55 Grains
Bullet Diameter: .224
Bullet Ballistic Coefficient: .267
Muzzle Velocity: 3270 fps
Muzzle Energy: 1306 ft/lbs
Casing: Reloadable Brass
Primer Style: Non-Corrosive Boxer
1000 Round Case
No Barrel Leading
Usage: Target, Range