Frontier Cartridge 5.56x45mm NATO ammunition (part no. FR260) loads a 62-grain full metal jacket bullet on Lake City military brass, giving range and training shooters mil-spec-style ball ammo from a name-brand manufacturer at a practice-friendly price. Hornady builds the Frontier line on surplus-grade Lake City brass to keep cost down while still delivering the reliability of a major manufacturer behind every round. In rifle ammunition, this is the case that gets bought when the range day calls for volume.

Key Specifications

• The chambering is 5.56x45mm NATO, also safe to fire in rifles chambered for .223 Remington.
• The bullet is a 62-grain full metal jacket, standard mil-spec-style ball weight for 5.56 NATO.
• The case is Lake City military-contract brass, sourced from the same arsenal that supplies U.S. military ammunition.
• The case material is brass, reloadable and reliable through both bolt and semi-auto actions.
• Each box holds 20 rounds, sized for a range session without committing to a full case.
• At roughly $0.59 per round, it’s priced for high-volume range and training use.
• Hornady markets Frontier as an affordable, name-brand alternative to unbranded steel-case or surplus ammunition.
• This load is built for range and training volume, not precision or hunting work.

Frequently Asked Questions

Will this cycle reliably in an AR-15? Yes, it’s loaded to 5.56 NATO specifications on brass cases, running reliably through gas guns built for the round.

What is Lake City brass? Lake City is the U.S. Army’s ammunition plant; brass sourced from that facility has a reputation for consistent quality, which Frontier uses to keep cost down without sacrificing reliability.

Buy Frontier Cartridge 5.56 NATO 62gr FMJ Ammo

High-volume range days call for ammo you can trust box after box, and Frontier delivers that from a name you know. Order from our Lubbock, Texas gun shop and it ships fast to your door.