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9mm Luger 70 Grain HERO

0.45 LBS

Product Description

Maximum Expansion Technology is used to produce projectiles that create the largest wound channels of any bullet you can buy.  These cavernous hollow points are designed to expand upon contact with a fluid-based medium through hydraulic energy.  They do not expand on dry mediums like wood, drywall, bone, or sheet metal.  The expansion process of Lehigh's Maximum Expansion technology is very different than that of a traditional lead jacketed bullet that expands when it comes in contact with a hard surface – these bullets were designed to expand where the expansion is needed and that is in the vital zone of your intended target.

Lehigh Maximum Expansion bullets expand with razor sharp petals positioned AND maintained at the largest diameter to provide the greatest cutting surface.  Contrast this with a traditional jacketed bullet that expands and quickly mushrooms the nose back along the bullets shank once again reducing the diameter down to a less effective size.  Through design and testing, the expansion point can be moved to maintain the expansion diameter exactly where required providing the optimum terminal performance.

Nickel plated casings with our new nickel plating process provides several key benefits, not limited to but including; improved feeding in all actions of firearms, enhanced corrosion resistance over traditional brass, improved cosmetics, and ease of cleanup during reloading.  Nickel plated casings will not tarnish like brass during storage or when in contact with foreign materials such as leather, moisture, and other metals.

Until the development of the Ducta-Bright 7a process, nickel plating casings often limited the number of reloads as compared to raw brass.  It was claimed that nickel plated brass casings “embrittled” the brass therefor making it less desirable for reloaders despite the ease of cleanup that nickel plating offers.  In addition, ammunition engineers raising concerns of using nickel plating in “very hot” +P or magnum loads found that traditional nickel plating often cracked deep-drawn cases, or worse, lead to a total failure. This new process eliminates any concern, to the shooter or reloader, of hazard or ability to re-use the brass.
As with all of Underwood Ammo’s rounds, we utilize flash suppressed powder so that your vision will not be compromised if it becomes necessary to use your firearm in low light.
While taking advantage of our state of the art testing equipment, this high performance ammunition is field tested using popular, real firearms that our customers are most likely to own out in the real world with all the elements you would experience. If for some reason Underwood Ammunition fails to meet performance expectations, we stand by our product 100% and will make sure the customer is satisfied with every purchase.
This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.

Technical Information
  • Caliber: 9mm Luger
  • Bullet Weight: 70 Grains
  • Bullet Style: High Energy Retaining Ordnance (HERO)
  • Case Type: Ducta-Bright 7a Nickel Plated Brass
Ballistics Information:
  • Muzzle Velocity: 1650 fps
  • Muzzle Energy: 423 ft. lbs.
  • Penetration: 10 in.
  • Expansion: 0.66 in.

Product Videos

NEW Underwood 9mm Xtreme Defender Test 29:14

Underwood Ammo has another wicked 9mm load they're offering using a Lehigh Defense bullet. I've never been one to get excited about fast copper bullet designs, but this thing really does things I've never seen before. Check it out and let me know what you think! Underwood Ammo: XM42: Copper Custom: Full30:

  • NEW Underwood ...
    Underwood Ammo has another wicked 9mm load they're offering us...

Product Reviews

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  1. High quality 5 Star Review

    Posted by on 30th Oct 2016

    Feeds perfectly in my Sig 229. Shoots better than anything put through my weapon. Highly recommend.

  2. Works exactly as advertised 4 Star Review

    Posted by on 22nd Sep 2016

    Check out my gel test here

  3. Low recoil high speed. 5 Star Review

    Posted by on 21st Sep 2016

    Feeds very reliably out of a VP 9 and is very effective on a pork shoulder I used to test it on.

  4. Carbine Ballistics 5 Star Review

    Posted by on 29th May 2016

    Ten shot average from a Just Right Carbine (16.5" barrel): 1911 FPS & 567 FPE.

  5. WOW'''' 4 Star Review

    Posted by on 18th May 2016

    Take them out in the back 40 and shoot some watermelons with them Hope you like melom
    that's all I can say

  6. trust 5 Star Review

    Posted by on 3rd May 2016

    what a house load this is 17 rds in a bed side gun,unbelievable speed ,underwood ammo has earned my complete trust in the products i buy ,this stuff is almost to nice to shoot,should be framed for my wall,buy it like your life depends on it because it just might

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