Hornady Superformance 5.56 NATO cartridges are factory-loaded with 55 grain CX bullets and engineered for higher muzzle velocity while remaining within SAAMI pressure guidelines. The load uses optimized propellants to deliver increased speed and a flatter trajectory without added recoil or excessive muzzle blast. Components include brass cases and quality primers to promote consistent ignition and reliable function in a wide variety of rifle platforms. Each commercial box contains 20 rounds; cases are commonly packaged as 10 boxes per case.
Key Specifications
- Caliber is 5.56 NATO.
- Bullet weight is 55 gr.
- Bullet type is listed as CX / Copper Solid.
- Muzzle velocity is 3175 fps.
- Muzzle energy is 1231 ft lbs.
- Rounds per box are 20.
- Boxes per case are 10.
- Units per case (total rounds) are 200.
- Case material is Brass.
- Ballistic coefficient (G1) is .270.
Designed for shooters who prioritize dependable, high-performance ammunition, this Superformance load offers a practical balance of speed, consistency and terminal performance appropriate for hunting and general rifle use. Its higher-velocity profile produces flatter trajectories and reliable downrange performance while maintaining safe operating pressures for compatible firearms.
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