81265
5.56 NATO
70 gr. GMX® TAP® BARRIER™

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

cartridge
cutaway

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 70 gr. GMX® is a monolithic solid bullet constructed entirely from a premium 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.

NOTE: NOT for use in 223 REM chambered guns.

BULLET

  • Ballistic Coefficient: .350
  • Sectional Density: .199
  • Bullet Length: 1.050"
  • Recommended Rifling Twist Rate: 1:7"
  • Characteristics: Hollow point, Copper alloy
  • GMX®

CASE

5.56 NATO
  • Manufacturer's Name (Hornady) and Caliber Designation (5.56 NATO) imprinted on case head
  • Match Grade Brass Composite

POWDER & PRIMER

  • Powder: Temperature stable with flash retardant, Increased powder charge to NATO specifications and pressure peak
  • Primer: Staked primer pocket, Sealed primer, Small rifle milspec primer

PACKAGING & LOT NUMBERS

  • 20 rounds per box
  • 10 boxes per case (200 rounds per case)
  • Lot numbers on each box and case
10.4" Heckler & Koch HK416 1:7" Muzzle 25 Yards 50 Yards 75 Yards 100 Yards
Velocity (fps) 2383 2148 1928 1722 1535
Energy (ft lbs) 883 717 578 461 366
Trajectory (in) -2.5 2.5 0 -11.9 -35.6
11.5" Bushmaster® XM15-E2S 1:9" Muzzle 25 Yards 50 Yards 75 Yards 100 Yards
Velocity (fps) 2571 2326 2095 1878 1676
Energy (ft lbs) 1027 841 682 548 437
Trajectory (in) -2.5 2 0 -9.9 -29.8
14.5" Colt® M4 Carbine 1:7" Muzzle 25 Yards 50 Yards 75 Yards 100 Yards
Velocity (fps) 2658 2409 2173 1951 1744
Energy (ft lbs) 1098 902 734 591 473
Trajectory (in) -2.5 1.8 0 -9.2 -27.5
16" COLT M4 1:7” Muzzle 25 Yards 50 Yards 75 Yards 100 Yards
Velocity (fps) 2652 2403 2167 1946 1739
Energy (ft lbs) 1093 897 730 588 470
Trajectory (in) 0 3 0 -10.5 -30.1
16" Colt® Law Enforcement Carbine 1:7" Muzzle 25 Yards 50 Yards 75 Yards 100 Yards
Velocity (fps) 2715 2462 2224 1999 1788
Energy (ft lbs) 1146 942 769 621 497
Trajectory (in) -2.5 1.6 0 -8.7 -26.1
18.5" Ruger® Mini 14® 1:9" Muzzle 25 Yards 50 Yards 75 Yards 100 Yards
Velocity (fps) 2787 2530 2288 2059 1844
Energy (ft lbs) 1207 995 814 659 529
Trajectory (in) -1 2.2 0 -8.9 -26
20" 5.56x45mm NATO Test Barrel 1:7" Muzzle 25 Yards 50 Yards 75 Yards 100 Yards
Velocity (fps) 2882 2620 2373 2139 1919
Energy (ft lbs) 1291 1067 875 711 573
Trajectory (in) -1.5 1.8 0 -8 -23.6
20" Bushmaster® XM15-E2S 1:7" Muzzle 25 Yards 50 Yards 75 Yards 100 Yards
Velocity (fps) 2934 2669 2419 2183 1960
Energy (ft lbs) 1338 1107 910 741 597
Trajectory (in) -2.5 1.2 0 -7.2 -21.6
Firearm:
COLT M4
Barrel:
16"
Twist Rate:
1:7
Substrate Material Total Penetration Max Cavity Depth of Max Cavity Initial Penetration Retained Weight Retained Percentage Expanded Diameter
Bare Gelatin scale 20" 1.5" 4.5" 0.5" 67.6 gr 97% 0.47"
Bare Gelatin scale 17" 4.5" 4.5" 0.5" 69.5 gr 93% 0.46"
Steel scale 16.5" 5.5" 6" 0.5" 69.9 gr 100% 0.22"
Steel scale 14.75" 3.75" 3" 0.25" 64.7 gr 86% 0.43"
Wallboard scale 14.25" 5" 3.5" 0.5" 66.7 gr 95% 0.49"
Wallboard scale 17.25" 3" 3.25" 0.25" 63.4 gr 85% 0.52"
Plywood scale 16.75" 4.25" 5.5" 0.75" 64.1 gr 92% 0.36"
Plywood scale 16.75" 5" 4" 0.5" 46.1 gr 62% 0.37"
Auto Glass scale 15.25" 3.5" 3" 0.75" 41.4 gr 55% 0.32"
Auto Glass scale 13.75" 4" 5.5" 0.5" 63.8 gr 91% 0.34"
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5.56 NATO 70 GR GMX® Barrier Cartridges Evaluation

Thank you for participating in our Member Tested and Recommended Program. The 5.56 NATO 70 GR GMX Barrier Cartridges have been tested and recommended by the members of the National Tactical Officers…

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Ballistics

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Bare Gelatin

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Total Penetration (Inches)
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Gelatin: Auto Glass

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Gelatin: Wallboard

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Gelatin: Plywood

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Gelatin: Steel

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Gelatin: Heavy Clothing

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Total Penetration (Inches)
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Max Cavity (Inches)
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