Underwood Ammo

10mm Auto 220 Grain Hard Cast Flat Nose, 20 Rounds

$30.99

Item# 242

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• Not for sale outside of the United States

• Item ships by ground only

• Must be 21: adult signature required for delivery

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Hi-Tek coating allows you to enjoy the benefits of a hard-cast projectile and the cleanliness normally seen in copper jacketed/plated rounds.

Hi-Tek is a polymer based compound* that not only reduces fouling in your barrel, but also substantially reduces airborne lead contamination (allowing for use in some indoor ranges). The elimination of the wax lubrication combined with the reduced airborne lead contamination results in considerably less smoke produced with each shot.


*Hi-Tek is NOT nylon, PTFE (teflon), or Molybdenum


Hard cast flat nose bullets are non-expanding, powerfully penetrative bullets that are designed with your woods defense needs in mind; whether fending off wild hogs or black bears, the hard cast flat nose bullets are consistently effective in taking down any wild animals that you may encounter.


In contrast to the round nose non-expanding bullets, the flat nose bullets are able to pierce through dense bodies of mass while maintaining their nose forward position, which is optimal for maximum penetration.


All Underwood Ammo™ rounds, utilize flash suppressed powder so that your vision will not be compromised if it becomes necessary to use your firearm in low light.


Nickel plated casings with Underwood's 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.


This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.


Technical Information
• Caliber: 10mm Auto
• Bullet Weight: 220 Grains
• Bullet Style: Hi -Tek Coated Hard Cast Flat Nose 21 BHN
• Case Type: Ducta-Bright 7a Nickel Plated Brass

Ballistics Information
• Muzzle Velocity: 1200 fps
• Muzzle Energy: 703 ft lbs

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ATTENTION: Federal and/or state and local laws may allow persons who are 18 or 21 years of age or older to purchase this product. However because of shipping regulations, only persons 21 and older may sign for this and similar products. For safety reasons, we do not accept returns on ammunition. Always make sure you use the correct ammunition for your specific firearm. Check your local laws for any other regulations before ordering.
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