Buy Hornady Superformance Ammunition 5.56x45mm NATO 55 Grain CX Polymer

Hornady Superformance Ammunition 5.56x45mm NATO uses progressive propellants that push their CX bullets to performance levels unattainable with conventional ammunition. Increase your rifle’s commission up to 200 fps without additional chamber pressure, recoil, barrel blast, temperature sensitivity, fouling, or loss of accuracy. This ammunition is new production, non-corrosive, in reloadable nickel-plated brass cases with a boxer primer.

Hornady gmx 5.56 (copper expanding alloy) bullet represents the most advanced monolithic hunting bullet on the market. Its optimized design offers extended range performance, increased accuracy, high weight retention, and deep penetration.

So, the monometallic design of the GMX bullet is made from a copper alloy. More complex than solid copper, the copper/zinc alloy has been shown to shoot cleaner, mess less, and deliver consistent, smooth pressure curves. Firm the bullet’s bearing surface and overall drag while achieving some of the highest ballistic coefficients of non-traditional monolithic bullets. The hard polymer tip is drawn into the hollow cavity at the front of the shot, creating a mushroom-like projectile as it travels through the animal. In other areas that require non-traditional bullets, GMX is ideal for a game of any size, from antelope to elk. This ammunition is new production, non-corrosive, in boxer primed reloadable brass cases. Buy Hornady Dangerous Game Superformance Ammunition 375 online.

Please note:  Hornady 5.56 hunting ammo the 5.56x45mm will fit in a .223 Remington chamber, the 5.56 is a military projectile that operates at higher pressures than its .223 counterpart and is not recommended for chambering. .223 Remington.

Product Overview

Cartridge 5.56x45mm NATO
Grain Weight 55 Grains
Quantity 20 Round
Muzzle Velocity 3130 Feet Per Second
Muzzle Energy 1196 Foot Pounds
Bullet Style Polymer Tip
Bullet Brand And Model Hornady GMX
Lead Free Yes
Case Type Brass
Primer Boxer
Corrosive No
Reloadable Yes
G1 Ballistic Coefficient 0.27
Sectional Density 0.157
Test Barrel Length 20 Inches
Velocity Rating Supersonic
Country of Origin United States of America


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