The Winchester USA M855 Green Tip 5.56x45mm NATO 62-grain Full Metal Jacket (Winchester part no. WM855200) is the same military-specification steel-core loading found in Winchester’s bulk case-lot products, sold here in a more manageable 200-round box. The green-painted tip identifies the steel penetrator core beneath the copper jacket, giving it improved penetration through hard targets compared to a standard lead-core 55-grain FMJ. Winchester loads this to the same specification the U.S. military has fielded for decades, a proven, reliable choice for training, range use, and duty-caliber practice.

Key Specifications

• Chambered in .223 Rem/5.56 NATO, and built to the M855 specification.
• The 62-grain bullet carries a steel penetrator core beneath the jacket, marked by its green tip.
• Bullet construction is Full Metal Jacket, with the added steel core for improved penetration through hard targets.
• Cases are brass, standard for reloading and reliable ignition.
• It ships 200 rounds to a box, with a 4-box case option for higher-volume buyers.
• Cost works out to about $0.57 per round, competitive pricing for M855-specification ammunition.
• M855 has been the U.S. military’s standard 5.56 ball specification for decades, which is part of why it remains widely trusted and available.
• The steel core adds genuine hard-target penetration that a standard lead-core 55-grain FMJ does not offer.
• It cycles reliably in any rifle chambered in .223 Rem/5.56 NATO.

Frequently Asked Questions

What does the green tip mean? It marks the bullet as M855-specification, carrying a steel penetrator core beneath the jacket for improved penetration on hard targets.

How many rounds come in a box? Each box holds 200 rounds, with a 4-box case option available.

Is this reliable ammunition for training? Yes — M855 is the same specification the U.S. military has fielded for decades as its standard 5.56 ball round.

Buy the Winchester USA M855 Green Tip 5.56x45mm 62gr FMJ, 200-Round Box

For serious range time without buying a full pallet, this 200-round M855 box hits a practical middle ground. Order it from our Winchester lineup at our Lubbock, Texas gun shop and it ships fast to your door, or browse the full rifle ammunition selection for more 5.56 training loads.