The Frontier Cartridge FR260 delivers military-specification performance for tactical applications and high-volume training. This 5.56x45mm NATO ammunition features 62-grain full metal jacket projectiles manufactured to strict military standards for consistent accuracy and reliable function across AR-15 platforms.
What Makes This Different
Frontier's military-grade construction uses Lake City brass cases and military-spec powder charges that meet NATO pressure specifications. The 62-grain FMJ projectile matches M855 ball ammunition weight and ballistic characteristics, providing superior penetration compared to standard 55-grain loads. Each cartridge undergoes rigorous quality control testing to ensure consistent velocities within 50 fps standard deviation.
Key Features
- 62-grain full metal jacket projectile for enhanced penetration and barrier performance
- Lake City military brass cases for maximum durability and consistent extraction
- NATO-specification powder charges delivering 3,020 fps muzzle velocity
- Boxer primers for reliable ignition in adverse conditions
- Compatible with all 5.56 NATO and .223 Remington chamber specifications
- Bulk packaging with 500 rounds per case (25 boxes of 20)
- Non-corrosive propellant and primer compounds
This ammunition excels in tactical training environments where consistent performance matters. The 62-grain projectile maintains stability through intermediate barriers while delivering flat trajectories out to 300 yards. Military and law enforcement agencies rely on this specification for duty ammunition compatibility testing and qualification courses.
Technical Specs
- Caliber: 5.56x45mm NATO
- Bullet Weight: 62 grains
- Bullet Type: Full Metal Jacket (FMJ)
- Muzzle Velocity: 3,020 fps (20-inch barrel)
- Muzzle Energy: 1,255 ft-lbs
- Case Material: Lake City brass
- Primer: Boxer, non-corrosive
- Packaging: 20 rounds per box, 25 boxes per case
- Overall Length: 2.26 inches
- Manufactured in USA
Professional shooters choose Frontier FR260 for its proven reliability and military heritage. The bulk case packaging provides excellent value for high-volume training while maintaining the quality standards demanded by tactical applications.