1. Ammo
  3. Rifle Ammunition
  5. 5.56 mm NATO

Hornady 5.56mm NATO 55 gr GMX Superformance 20/Box

  • Item Number: 81254 BX
  • /
  • View More Items by Hornady
  • /
  • Condition: NEW
5.56 NATO 55 GR GMX SUPERFORMANCE
Temporarily Out of Stock
  • WINCHESTER AMMO 5.56mm 55 gr Full Metal Jacket USA 20/Box

    Winchester 5.56mm 55 gr Full Metal Jacket USA 20/Box
    $16.99 ($0.85 / round)

  • FEDERAL AMMUNITION 5.56mm 55 gr Jacketed Soft Point Champion 20/Box

    Federal 5.56mm 55 gr Jacketed Soft Point Champion 20/Box
    $10.99 ($0.55 / round)

  • WINCHESTER AMMO 5.56 NATO 55 Grain FMJ USA M193 20/Box

    Winchester 5.56 NATO 55 Grain FMJ USA M193 20/Box
    $12.99 ($0.65 / round)

  • FEDERAL AMMUNITION 5.56mm 55 gr FMJ 20/Box

    Federal 5.56mm 55 gr FMJ 20/Box
    $12.99 ($0.65 / round)

  • WINCHESTER AMMO 5.56mm 55 gr FMJ 150/Box

    Winchester 5.56mm 55 gr FMJ 150/Box
    $99.99 ($0.67 / round)

  • WINCHESTER AMMO 5.56mm 62 gr FMJLC M855 Green Tip Winchester 200/Box

    Winchester 5.56mm 62 gr FMJLC M855 Green Tip Winchester 200/Box
    $139.99 ($0.70 / round)

  • WINCHESTER AMMO 5.56mm NATO 62 gr FMJ Green Tip M855 Penetrator 150 Round Value Pack

    Winchester 5.56mm NATO 62 gr FMJ Green Tip M855 Penetrator 150 Round Value Pack
    $134.99 ($0.90 / round)

  • WINCHESTER AMMO 5.56mm 55 Gr FMJ USA White Box 200/Box

    Winchester 5.56mm 55 Gr FMJ USA White Box 200/Box
    $129.99 ($0.65 / round)

  • WINCHESTER AMMO 5.56mm M855 62 gr FMJ Green Tip Lake City 500 Round Range Pack

    Winchester 5.56mm M855 62 gr FMJ Green Tip Lake City 500 Round Range Pack
    $349.99 ($0.70 / round)

  • WINCHESTER AMMO 5.56mm M193 55 gr FMJ Stripper Clip 420 Rounds in Metal Ammo Can

    Winchester 5.56mm M193 55 gr FMJ Stripper Clip 420 Rounds in Metal Ammo Can
    $263.99 ($0.63 / round)

  • WINCHESTER AMMO 5.56mm M855 Green Tip 62 gr FMJ Stripper Clip 420 Rounds in Metal Ammo Can

    Winchester 5.56mm M855 Green Tip 62 gr FMJ Stripper Clip 420 Rounds in Metal Ammo Can
    $399.99 ($0.95 / round)

  • WINCHESTER AMMO 5.56 mm 62 gr FMJ M855 Green Tip Lake City 1000/Case

    Winchester 5.56 mm 62 gr FMJ M855 Green Tip Lake City 1000/Case
    $799.99 ($0.80 / round)

Product Description

Hornady 5.56mm NATO Superformance Ammuniton 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 the GMX bullet 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 – large charge weights of a slow burning powder in a larger cartridge case. Ultimately this leads to more recoil and muzzle blast. The Superformance solution is an elegant approach that utilizes specialized powders…at NORMAL charge weights, that impart ALL useable energy to the bullet reducing the ROCKET NOZZLE EFFECT at the muzzle while still increasing velocity!

Ammo Specifications

  • Caliber: 5.56mm NATO
  • Bullet Weight: 55 gr
  • Bullet Type: GMX
  • Muzzle Velocity: 3130 fps
  • Quantity: 20 Rounds per box

Customer Comments & Questions

Customer Reviews

No reviews have been written for this product.

Write a review