Winchester USA M855 is Lake City-manufactured centerfire rifle ammunition intended for training and extended range sessions. The load uses a 62-grain full metal jacket projectile and is supplied in bulk packaging for high-volume use. Cases are brass and marked as reloadable with non-corrosive primers in source descriptions.
Packaging
Box: Sold per box containing 1000 rounds.
Case: Can be ordered by the case; source attributes list 1 box per case, so a case equals one 1,000-round box in the provided data.
Key Specifications
- Manufacturer is Winchester.
- Caliber is 5.56 NATO.
- Bullet weight is 62 grains.
- Bullet type is Full Metal Jacketed.
- Rounds per box are 1000.
- Boxes per case are 1.
- Case material is Brass.
- Reloadable is listed as Yes.
- Application is listed as Target Shooting.
- Firearm type is Centerfire.
This bulk Winchester USA M855 offering is configured for shooters and training programs that require consistent, full metal jacket performance in high quantities. The Lake City-manufactured rounds provide a straightforward option for range-focused use where reliable feeding and consistent trajectory are the priorities.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.




