Skip to content
Underwood Xtreme Penetrator 10mm Auto Ammo 140 Grain Solid Monolithic - 648

Underwood Xtreme Penetrator 10mm Auto Ammo 140 Grain Solid Monolithic - 648

Regular price $38.99$1.950 /Rd
Sale price Regular price $38.99

Underwood Xtreme Penetrator 10mm Auto Ammunition 140 Grain Solid Monolithic - 648

Underwood Ammo combines its renowned power and precision with Lehigh Defense's innovative Xtreme Penetrator bullets, resulting in a round that is as formidable as it is functional. This 10mm Auto ammunition is designed for both hunting and self-defense, featuring a solid copper construction and a uniquely engineered nose that promotes high-level penetration and reliable feeding through magazines. These rounds come with nickel-plated brass casings, offering enhanced corrosion resistance, improved aesthetics, and ease of reloading. With flash suppressed powder, users can maintain optimal vision during low-light engagements, enhancing target acquisition and accuracy under adverse conditions. As with all Underwood Ammo products, this round has undergone field testing in realistic scenarios using popular firearms, ensuring reliability and consistency across various platforms.

Features and Specifications:

  • Nickel-Plated Casings: Offers improved feeding, corrosion resistance, and easier reloading compared to traditional brass.
  • Flash Suppressed Powder: Maintains visibility in low-light conditions for better target acquisition.
  • High Penetration: The solid copper, monolithic bullet features a unique nose design to maximize penetration.
  • Versatile Use: Designed for both hunting and self-defense applications.
  • New Production: Non-corrosive, boxer primed, and reloadable brass cases.

Deep Dive

Overview

The Underwood Ammo 10mm Auto Xtreme Penetrator Ammunition is engineered for individuals seeking a reliable blend of penetration and precision for hunting and self-defense purposes. Its robust design allows it to punch through obstacles with minimal deviation. The ammunition is suitable for big game hunting thanks to its penetration capabilities and is also effective for personal protection, ensuring that defensive engagements are resolved quickly and efficiently.

History and Development

Underwood Ammo has established a reputation for creating ammunition that combines raw power with cutting-edge technology. By partnering with Lehigh Defense, they have brought the Xtreme Penetrator technology to the market, offering rugged construction and a specialized nose design. These innovations cater to the needs of shooters who require reliable performance in demanding situations.

Common Questions and FAQs

  • What benefits do nickel-plated brass casings provide?
    Nickel-plated brass casings ensure smoother feeding, superior corrosion resistance, and easier cleanup compared to traditional brass casings.
  • Is this ammunition suitable for reloading?
    Yes, the ammunition features reloadable brass cases, making it cost-effective for shooters who reload their own rounds.
  • How does flash suppressed powder aid in low-light situations?
    It prevents blinding muzzle flash, allowing shooters to maintain visibility and target acquisition in low-light or nighttime conditions.
  • Why is the solid monolithic bullet design advantageous?
    The solid copper construction ensures deeper penetration and more reliable performance against tough barriers, ideal for hunting and defense.
  • Can this ammunition be used for both civilian and law enforcement purposes?
    Absolutely, the versatile design makes it suitable for a variety of users, including civilians and professionals seeking effective stopping power.
  • How should this ammunition be stored to ensure maximum shelf life?
    To extend shelf life, store ammunition in a cool, dry place, away from direct sunlight and moisture, and in its original packaging when possible.

The 'Round Up'

Perfect Fit for:

  • Hunting Medium game / Large game / Dangerous game

Why It Stands Out:

Underwood Ammo’s 10mm Auto Xtreme Penetrator Ammunition offers a fusion of power and precision, perfect for those who demand high penetration in hunting and self-defense situations. Its solid copper bullet paired with nickel-plated cases ensures reliability and durability, making it an exceptional choice for discerning shooters. The innovative design caters to both civilian shooters and law enforcement professionals, providing confidence in performance when it matters most.

Technical Specifications

Mpn 648
Upc 816874020071
Manufacturer Underwood Ammunition
Platform Handgun
Ammo type Xtreme Penetrator (Solid Copper)
Caliber 10MM AMMO
Grain weight 140
Quantity per package Box of 20 / Case of 200
Muzzle velocity 1500 fps
Muzzle energy 700 ft lbs
Case type Nickel Plated Brass
Primer type normalized Centerfire / Boxer
Reloadable Yes
Lead free Yes

Overall rating: 5.0 / 5 from 1 reviews.

AI Generated Review Summary

Summary topics

Review topics: [].

Review highlights

Reviews

Great ammo, solid 10mm

"Great ammo, solid 10mm rounds from Underwood. Great shipping from Target Sports USA."

— David P. (5/5)

Q&A


Ammo+ Members Get The Best Perks

We don’t believe in hidden fees or padded shipping costs. While others sneak in charges, we keep it simple. Join AMMO+ and get up to 8% off every ammo order, free shipping, exclusive member perks, and a welcome gift just for signing up.

Up to 8% OFF AMMO

Anytime. Anywhere. Every Order.

Free Shipping

Every order. Box, case, or pallet.

Exclusives

From giveaways to annual events.

Target Sports USA

Huge Perks Like Yearly Truck Giveaways!

AMMO+ members are automatically entered to win. No extra steps. Just sign up, save money on ammo, and you’re in the running for the ultimate adventure vehicle.

Join Ammo+ Now
Target Sports USA

Ammo+ Welcome Gift Bonus

As a thank you for joining AMMO+, we’re throwing in an ammo can as a bonus with your first member purchase.

View All Ammo+ Perks!

Straight From The Source:

Real Members. Real Feedback. Real Deals.

Joe Guinta, NJ

Joe Guinta, NJ

Total Savings: $1,779 so far!

"I am a frequent shopper the company is aware of my ammo needs and keeps me on a list for desired ammo should that inventory go on sale."

Brad Dunlap, IN

Brad Dunlap, IN

Total Savings: $4,860 so far!

"The cost of the program is something that pays for itself in no time. Check it out, you’ll be glad you did!"

Jay Patel, FL

Jay Patel, FL

Total Savings: $11,912 so far!

"The benefits provided by the membership are worth every penny, and I could not recommend it enough"

About Underwood Ammunition

Underwood Ammunition is proudly made in the USA and is renowned for its high-velocity, hard-hitting performance tailored for self-defense, hunting, and tactical use. Featuring premium product lines like Xtreme Defender, Xtreme Penetrator, and Match Grade, Underwood uses cutting-edge bullet designs from Lehigh Defense and other top suppliers to ensure maximum energy transfer, deep penetration, and precision accuracy. Built with tight quality control and premium components, Underwood rounds are trusted by professionals and serious shooters. Target Sports USA carries Underwood Ammo in bulk with fast shipping and competitive pricing on calibers like 9mm Luger ammo, .380 ACP ammo, .357 Mag ammo, and 38 special ammo.


Shop Underwood Ammo By Category