Atomic .300 Winchester Magnum ammunition loaded with a 220‑grain match-style Hollow Point Boat Tail (HPBT) projectile. This load is presented in 20‑round boxes and is intended for precision shooting and field use where consistent ballistics and repeatable performance matter. The cartridges are reloadable and produced in the United States.
Packaging: Sold per box with 20 rounds per box. Case quantity is 10 boxes per case (200 rounds total); a case is achieved by ordering the required number of boxes.
Key Specifications
- The caliber is .300 Winchester Magnum.
- The bullet weight is 220 grains.
- The bullet type is Hollow Point Boat Tail.
- The listed muzzle velocity is 2600 fps.
- The listed muzzle energy is 3300 ft-lbs.
- The cartridges per box are 20 rounds.
- The boxes per case are 10 boxes.
- Reloadable status is Yes.
- Country of origin is Made in the USA.
- The package dimensions are 1.70 x 3.60 x 6.80.
This Atomic .300 Win Mag 220‑grain HPBT offering provides match-oriented performance in a standard 20‑round retail box, with the convenience of case ordering in 10‑box increments. It is suitable for precision-focused shooters and hunters seeking a consistent factory load in .300 Win Mag.
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.
Related Videos:




