Hornady Superformance Ammunition 5.56x45mm NATO 55 Grain CX Open Tip Lead Free – Box of 20

Short Product Summary

Hornady Superformance 5.56x45mm NATO 55 Grain CX is a high-velocity, lead-free hunting and performance load designed for modern sporting rifles. Featuring Hornady’s monolithic CX (Copper alloy eXpanding) bullet, this 5.56x45mm NATO ammo delivers flat trajectories, deep penetration, and reliable expansion — all while remaining California compliant and environmentally conscious.

What Is Hornady Superformance 5.56 55 Grain CX?

Hornady Superformance 5.56 NATO 55 Grain CX is part of Hornady’s premium Superformance line, engineered to increase velocity without increasing chamber pressure.

This load features:

• 55 Grain CX (Copper alloy eXpanding) bullet

• Lead-free construction

• 5.56x45mm NATO pressure specification

• Enhanced velocity over standard 5.56 loads

The CX bullet is a monolithic copper alloy projectile designed for controlled expansion and high weight retention, making it ideal for varmint and medium game hunting where legal.

Key Benefits & Features

• 55 Grain CX Open Tip lead-free bullet

• California-compliant, non-lead projectile

• Higher velocity via Superformance propellants

• Flat shooting trajectory

• Deep penetration with controlled expansion

• Brass-cased, reloadable

• Designed for AR-15 and 5.56 NATO platforms

Hornady Superformance technology uses specialized propellants that increase muzzle velocity while maintaining safe pressure levels in properly rated firearms.

Performance & Ballistics

Hornady Superformance 5.56 55 grain CX offers:

• Increased muzzle velocity compared to standard 5.56 NATO loads

• Rapid yet controlled expansion

• Excellent weight retention

• Flat trajectory for extended range accuracy

The monolithic CX bullet retains mass better than traditional lead-core bullets, improving penetration and terminal performance.

Important: This is 5.56x45mm NATO ammunition. Use only in rifles chambered for 5.56 NATO or .223 Wylde.

Typical Uses

• Predator hunting

• Varmint control

• Lead-free hunting zones

• AR-15 field applications

• Flat-shooting performance loads

If you are comparing Hornady Superformance 223 vs 5.56 NATO, note that this load is built to 5.56 NATO specifications and may produce higher pressures than standard .223 Remington ammunition.

Why Buy Hornady Superformance 5.56 From Primereloaders?

When shopping for Hornady Superformance 5.56 ammo, Primereloaders offers:

• Competitive pricing

• Fast order processing

• Reliable in-stock inventory

• Secure checkout

• Excellent customer service

We ship across the United States and Canada, including Texas, Florida, Arizona, Georgia, Pennsylvania, Michigan, Ohio, Nevada, North Carolina, and many more locations.

If you’re searching for Hornady Superformance for sale, 5.56x45mm NATO ammo in stock, or lead-free 5.56 hunting ammunition, Primereloaders makes ordering simple and dependable.

Frequently Asked Questions

What is the Hornady CX bullet?

CX stands for Copper alloy eXpanding. It is a monolithic, lead-free bullet designed for controlled expansion and high weight retention.

Is Hornady Superformance 5.56 more powerful?

Superformance ammunition is engineered to provide higher velocity compared to standard loads while maintaining safe pressure levels in appropriate firearms.

Is this ammo lead-free?

Yes. The 55 Grain CX bullet is completely lead-free.

Can I use this in a .223 Remington rifle?

Only use this ammunition in rifles rated for 5.56 NATO or .223 Wylde. It is loaded to 5.56 NATO pressure specifications.

Is this good for hunting?

Yes. The CX bullet is designed for controlled expansion, making it suitable for predator and varmint hunting where legal.