Superformance Ammunition - 5.56mm Nato, Cx, 55 Gr, 20/bx

Hornady Superformance Ammunition in 5.56mm NATO is engineered to deliver up to 200 fps velocity gain without introducing excess chamber pressure, recoil, or muzzle blast. This 55-grain centerfire rifle load uses Hornady's progressive propellant technology to achieve performance increases that traditionally require pressure or thermal penalties. Field-tested across law enforcement, military training, and civilian precision applications, Superformance 5.56mm NATO ammunition delivers measurable velocity advantages while maintaining pressure curves within SAAMI specifications.

The 55-grain projectile represents the original military standard weight for the 5.56x45mm NATO cartridge, optimizing terminal performance across typical engagement distances in both short-range and extended precision scenarios. Progressive propellants burn more efficiently across varying barrel lengths and environmental conditions, reducing temperature sensitivity—a critical factor for shooters operating in diverse climates or extended training sessions. The consistent ballistics profile maintains zero shift across temperature ranges, eliminating the need for seasonal point-of-aim adjustments common in conventional loadings.

This 20-round-per-box configuration serves shooters running patrol carbines, conducting range training, or maintaining zero on duty rifles. Law enforcement and military operators value Superformance for its accuracy consistency and velocity reliability, while precision shooters rely on the reduced shot-to-shot velocity variation inherent in progressive propellant design. The ammunition delivers performance gains that translate to flatter trajectories and retained energy at distance without requiring firearm modifications or pushing pressures beyond design limits.

Hornady's Superformance line bridges the gap between standard and magnum loadings, offering a practical option for shooters seeking enhanced velocity without magnum-grade recoil or wear. The 5.56mm NATO specification ensures universal compatibility with modern sporting rifles, military-pattern carbines, and precision platforms using the standard NATO chamber. This ammunition pairs reliability with measurable ballistic advantages, addressing the needs of serious shooters who demand consistency across environmental conditions.