Winchester/Olin M855 5.56 NATO (62) FMJ Ammunition – 900-Rounds

Condition: New 

Quantity: 900 Rounds (in factory Winchester box))

Stock up on authentic, MIL-SPEC 5.56x45mm NATO ammunition with this 900-round case of Winchester / Olin M855 "Green Tip". Manufactured to strict U.S. Military standards, this ammo is designed for high-volume target practice, tactical training, and reliable long-term storage.

Each round features a 62-grain Full Metal Jacket (FMJ) projectile equipped with the iconic steel penetrator core inside a copper jacket, painted green for rapid identification. Loaded into reloadable, heavy-duty brass cases with non-corrosive primers, this ammo provides consistent performance, flat trajectories, and dependable cycling in AR-15 and M4 platform rifles.

• Manufacturer: Winchester / Olin (U.S. Military Contractor)

• Caliber: 5.56x45mm NATO

• Bullet Weight: 62 Grain

• Bullet Type: M855 Green Tip FMJ (Steel Penetrator Core / Lead Antimony Core)

• Muzzle Velocity: ~3,100 fps (out of a 20" barrel)

• Muzzle Energy: 1,325 ft-lbs

• Case Material: First-Quality Annealed Brass (Reloadable)

• Primer: Non-Corrosive, Sealed Boxer Primers

• Packaging: 900 Rounds packed in a reusable, weather-sealed metal ammo can

• Military Grade Reliability: Produced under contract specifications for proven function and velocity.

• Corrosion Resistance: Sealed primers and crimped cases guard against moisture and environmental exposure.

• Long-Term Storage Ready: Ships inside a heavy-duty steel ammo can with a rubber gasket seal to keep moisture out.

• Range & Tactical Use: Ideal for dynamic shooting, standard target practice, and long-range tactical drills.

Buyer Responsibility Note:

M855 steel core ammunition contains a steel penetrator tip and may be restricted at some indoor ranges. Please check local range rules before purchase. Buyer must be of legal age and compliant with all state and local laws governing ammunition purchases.