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Hornady 5.56 55 GMX SF, 20 Rounds/Box

Hornady 81254 Rifle Rounds Zoom

Model #: 81254

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Hornady Superformance Rifle Ammo for Hunting. 223 Remington/5.56 NATO, 55 GR, Gilding Metal Expanding. Box price, 20 Rounds/Box.
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Full Description


    Superformance ammunition is 100 to 200 fps faster than any conventional ammunition on the market today, and achieves this performance in every gun, without increases in felt recoil, muzzle blast, temperature sensitivity, fouling or loss of accuracy. Superformance is a cutting edge technological advancement in ammunition design that transcends convention and achieves the highest performance of any ammunition on the market today. Superformance uses ultra progressive propellants that take your favorite SST or GMX bullets to levels of performance that are simply unattainable with conventional propellants. In order to get more velocity in the past, shooters have used a brute force approach with large charge weights of a slow burning powder in a larger cartridge case which leads to more recoil and muzzle blast. The Superformance solution utilizes specialized powders at normal charge weights, that impart all usable energy to the bullet reducing the rocket nozzle effect at the muzzle while still increasing velocity. Superformance provides increased performance, and is safe to use in all firearms, including semi-autos, lever gun and pump actions.
    Caliber223 Remington/5.56 NATO
    Bullet TypeGilding Metal Expanding
    Bullet Weight55 GR
    Muzzle Energy1412 ft lbs
    Muzzle Velocity3400 fps
    Rounds Per Box20
    Boxes Per Case10
    Casing MaterialCopper
    Product ModelSuperformance

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