Hornady Frontier .300 AAC Blackout 125 gr FMJ is a full metal jacket rifle load intended for reliable performance in modern sporting rifles and range training. The ammunition combines brass cartridge cases, military-grade boxer primers, and controlled propellant to promote consistent ignition and feeding. This round is suitable for target work and general-purpose range use where full metal jacket performance is preferred.
Packaging: Sold per box — each box contains 150 rounds. Case ordering: A case consists of 8 boxes for a total of 1,200 rounds; ordering a case quantity is achieved by ordering the required number of boxes.
Key Specifications
- Caliber: .300 AAC Blackout.
- Bullet weight: 125 grains.
- Bullet type: Full Metal Jacket (FMJ).
- Units per box: 150 rounds.
- Boxes per case: 8 boxes (1,200 rounds).
- Case material: Brass.
- Primer type: Military-grade boxer primers.
- Muzzle velocity: 2175 fps.
- Muzzle energy: 1313 ft lbs.
Frontier ammunition from Hornady pairs American-made components with military-grade primers and propellant to deliver consistent dimensions and function for high-volume range sessions and training. Choose the 150-round box for regular range use or the eight-box case for bulk procurement.
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.




