Hornady Frontier NATO Rifle Ammunition .223 Rem 55 gr FMJ 3240 fps 500/ct Case (25-20/ct Boxes)

Hornady Frontier NATO rifle ammunition in .223 Rem offers a straightforward, reliable option for shooters who demand consistent performance without the premium price tag. This 500-round case ships in twenty-five 20-round boxes, each loaded with 55-grain full metal jacket (FMJ) bullets traveling at 3240 fps. Whether you're putting rounds downrange at the range, training with your AR-platform rifle, or running drills, Frontier ammunition delivers the quality you'd expect from Hornady's manufacturing pedigree at a practical price point for high-volume shooting.

Frontier Cartridge ammunition is built on the same reloading precision and quality control that Hornady is known for across the industry. Every round uses military-grade brass cases, boxer primers, and consistent propellant charges—the foundation of reliable, predictable ballistics shot after shot. That consistency matters whether you're sight-in work, defensive training, or simply burning through a case at your favorite range.

.223 Rem FMJ loads like this are the workhorse of AR-15 shooters and budget-conscious rifle enthusiasts. The 55-grain bullet weight is a standard that balances velocity, trajectory, and performance across a wide range of barrel lengths. The full metal jacket construction means less cleanup than hollow points and excellent barrier penetration—important considerations for training scenarios and general-purpose shooting. A 500-round case gives you the volume to practice and build muscle memory without the constant resupply runs.

Key Features

• Hornady-manufactured 55-grain full metal jacket bullets for reliable expansion and consistent ballistics
• Military-grade brass cases and boxer primers for reliable ignition and reloading compatibility
• 3240 fps muzzle velocity optimized for standard .223 Rem chamber pressures
• 500-round case quantity in twenty-five 20-round boxes for convenient storage and transport
• Consistent loading techniques and quality control for shot-to-shot reliability

Specifications

Frequently Asked Questions

Will this ammo work in my AR-15?

Yes. Hornady Frontier .223 Rem ammunition is compatible with any rifle chambered in .223 Rem. The 55-grain bullet weight and FMJ construction are standard across modern AR-platform rifles and bolt-action .223 hunting rifles.

Is this ammunition reloadable?

Yes. Frontier ammunition uses military-grade brass cases with boxer primers, which means the brass can be saved and reloaded after firing.

What's the difference between .223 Rem and 5.56 NATO?

.223 Rem and 5.56 NATO use the same bullet diameter and case dimensions, but 5.56 NATO operates at higher chamber pressures. .223 ammunition can safely be fired in a 5.56 chamber, but 5.56 ammunition should only be used in rifles marked for 5.56 NATO. This product is .223 Rem specification.

How much does this case weigh?

We don't have the total case weight in our system. Contact us if you need that detail for shipping or storage planning.