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200 round Factory-Sealed Case Hornady 81265 GMX TAP Barrier - 5.56 NATO Optimized 70 Grain Hornady GMX in 20 round boxes

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$309.79
SKU:
81265(200)
200 round Factory-Sealed Case Hornady 81265 GMX TAP Barrier - 5.56 NATO Optimized 70 Grain Hornady GMX in 20 round boxes

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70 gr. GMX® TAP® BARRIER™ - Item No. 81265

 TAP® Barrier™ turns cover into concealment. The 5.56 NATO 70 gr GMX® Barrier™ round is a fantastic option for tactical situations that require deep penetration and terminal performance after contact with any FBI established urban barriers. The GMX® bullet is constructed entirely from a tough copper alloy that will deliver high weight retention and deep penetration. This bullet is well suited for guns with faster twist rates and is extremely reliable for patrol carbine use or any other situation that may involve vehicles or barricades. This load, utilizing the 70 grain Hornady GMX® projectile is designed as a “barrier blind” round, meaning performance is only minimally affected by barriers. It’s not armor-piercing, but significantly out-performs conventional bullets in law enforcement situations where officers may be required to engage deadly threats in vehicles or behind light cover. It’s also optimum for hunting requiring great expansion combined with deep penetration and nearly 100% weight retention. This loading is designed for rifles with a rifling twist of 1/7” or 1/8”. Penetration in ballistic gelatin consistently runs 17-22”, with a wound diameter in the 5”range. Recovered bullet diameter averages nearly .50 caliber.

The 70 grain GMX is a monolithic hollow-point, but unlike similar monolithic bullets such as the all-copper Barnes TSX, the Hornady GMX is made from gilding metal (95% copper and 5% zinc). Hence the “GM” portion of GMX. The 70 grain GMX has a nominal length of approximately 1.048”, making it slightly longer than the 70 grain Barnes TSX. Molon posting on m4carbine.net

"...the Hornady 70gr GMX projectile...is probably as close as one can get to the fabled "Browntip" ammo, although I believe the Browntip uses a TSX instead of a GMX bullet. Arguably, the GMX is an even better projectile for its superior performance on windshields and its resistance to fouling barrels quite as much. " WeaponEvolution.com - "5.56 Optimized" alternative for Civilians

"(The) 70-grain 5.56 is just the medicine for those searching for a high-performing monometal round. The load features a Hornady GMX monolithic copper alloy bullet. The longer projectile offers shooters an outstanding .350 ballistic coefficient. This combined with its weight and 95-percent retention of mass after impact, the round has excellent terminal ballistics and can really reach out and touch a critter. It also gives law enforcement a solid choice for a barrier penetration. Note, the load is designed to function with 1:7- and 1:8-inch twist rates." Gun Digest

Please Note: While the 5.56x45mm NATO will fit in a .223 Remington chamber, the 5.56 is a military round that runs at higher pressures than its .223 counterpart and is not recommended to be fired in a .223 Remington chamber!

  • Ballistic Coefficient: .350
  • Sectional Density: .199
  • Bullet Length: 1.050"
  • Recommended Rifling Twist Rate: 1:7"
  • Characteristics: Hollow point, Copper alloy
  • GMX®
Technical Information
  • Caliber: 5.56x45mm NATO
  • Bullet Weight: 70 Grain
  • Bullet Style: Hornady GMX
  • Case Type: Brass
Ballistics Information (20" NATO test barrel):
  • Muzzle Velocity: 2882 fps
  • Muzzle Energy: 1291 ft lbs

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