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Underwood Ammo

Underwood Ammo is a trusted American manufacturer recognized for its commitment to precision and performance in ammunition, proudly made in Sparta, IL. The brand offers a comprehensive selection of centerfire handgun ammo and specializes in advanced nickel plated brass casings for enhanced durability and reliability. Underwood Ammo’s product lineup features popular calibers such as 9mm and 10mm, both highly regarded among defensive shooters and hunters for their consistent performance. Every round is manufactured in the USA using premium components and undergoes rigorous quality control to ensure reliability for personal defense, hunting, and target shooting. With a reputation for innovation and a focus on meeting the needs of professionals and enthusiasts alike, Underwood Ammo stands out for its quality and attention to detail. Shop Underwood Ammo to experience proven American-made performance.

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1-24 of 90 Products
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Underwood Ammo XTP 10mm Auto 180gr Jacketed Hollow Point Nickel-Plated Brass Case 20 Rounds

Underwood Ammo XTP 10mm Auto 180gr Jacketed Hollow Point Nickel-Plated Brass Case 20 Rounds

$25 95
(1.298 per round)
In Stock
Underwood Ammo XTP 38 Special +P 125gr Jacketed Hollow Point 20 Rounds Nickel-Plated Brass Case

Underwood Ammo XTP 38 Special +P 125gr Jacketed Hollow Point 20 Rounds Nickel-Plated Brass Case

$21 96
(1.098 per round)
In Stock
Underwood Ammo 719 9mm+P 147 GR Hard Cast Flat Nose 20 Per Box

Underwood Ammo 719 9mm+P 147 GR Hard Cast Flat Nose 20 Per Box

$22 96
(1.148 per round)
In Stock
Underwood Ammo Xtreme Defender 9mm +P 90gr Solid Monolithic Ammunition

Underwood Ammo Xtreme Defender 9mm +P 90gr Solid Monolithic Ammunition

$27 28
(1.364 per round)
In Stock
Underwood 9mm Luger +P 115gr Xtreme Penetrator Ammunition - 20 rounds - 822

Underwood 9mm Luger +P 115gr Xtreme Penetrator Ammunition - 20 rounds - 822

$33 48
(1.674 per round)
In Stock
Underwood 45 ACP +P 255gr Flat Nose Black Cherry Coated Hard Cast Nickel-Plated Brass 20 Rounds

Underwood 45 ACP +P 255gr Flat Nose Black Cherry Coated Hard Cast Nickel-Plated Brass 20 Rounds

$28 71
(1.436 per round)
In Stock
Underwood Ammo 297 10mm 180 GR Full Metal Jacket 50 Per Box

Underwood Ammo 297 10mm 180 GR Full Metal Jacket 50 Per Box

$37 33
(0.747 per round)
In Stock
Underwood Xtreme Defender 9mm Luger 90gr Solid Monolithic HP Nickel-Plated Brass Case 20rd MPN 815.

Underwood Xtreme Defender 9mm Luger 90gr Solid Monolithic HP Nickel-Plated Brass Case 20rd MPN 815.

$28 46
(1.423 per round)
In Stock
Underwood 45 Colt +P 250gr XTP Jacketed Hollow Point Ammunition - 20 rounds

Underwood 45 Colt +P 250gr XTP Jacketed Hollow Point Ammunition - 20 rounds

$31 58
(1.579 per round)
In Stock
Underwood Xtreme Hunter 10mm Auto 150gr Solid Monolithic 1425 fps Ammunition - 20 rounds

Underwood Xtreme Hunter 10mm Auto 150gr Solid Monolithic 1425 fps Ammunition - 20 rounds

$48 81
(2.441 per round)
In Stock
Underwood 44 Remington Magnum 220gr Xtreme Penetrator Ammunition - 20 rounds

Underwood 44 Remington Magnum 220gr Xtreme Penetrator Ammunition - 20 rounds

$58 38
(2.919 per round)
In Stock
Underwood Ammo Xtreme Defender 9mm Luger 68gr Monolithic Solid Ammunition - 20 rounds - 863

Underwood Ammo Xtreme Defender 9mm Luger 68gr Monolithic Solid Ammunition - 20 rounds - 863

$27 28
(1.364 per round)
In Stock
Underwood 44 Rem Mag 305gr Lead Flat Nose Gas Check Ammunition - 20 rounds - 723

Underwood 44 Rem Mag 305gr Lead Flat Nose Gas Check Ammunition - 20 rounds - 723

$42 92
(2.146 per round)
In Stock
Underwood Ammo Range Supply 40 S&W 180gr FMJ 50 Rounds Brass Case

Underwood Ammo Range Supply 40 S&W 180gr FMJ 50 Rounds Brass Case

$37 15
(0.743 per round)
In Stock
Underwood Xtreme Defender 45 ACP 135gr Solid Monolithic Xtreme Defender Bullet 20 Rounds Nickel-Plated Brass

Underwood Xtreme Defender 45 ACP 135gr Solid Monolithic Xtreme Defender Bullet 20 Rounds Nickel-Plated Brass

$35 41
(1.771 per round)
In Stock
Underwood Ammo 458 SOCOM 300gr Jacketed Hollow Point Brass Case 20 Rounds

Underwood Ammo 458 SOCOM 300gr Jacketed Hollow Point Brass Case 20 Rounds

$51 91
(2.596 per round)
In Stock
Underwood Ammo XTP 44 Rem Mag 300gr Jacketed Hollow Point Nickel Plated Brass Case 20 Rounds.

Underwood Ammo XTP 44 Rem Mag 300gr Jacketed Hollow Point Nickel Plated Brass Case 20 Rounds.

$32 95
(1.648 per round)
In Stock
Underwood Ammo XTP .44 Remington Magnum 180gr Jacketed Hollow Point Nickel-Plated Brass Case 20 Rounds

Underwood Ammo XTP .44 Remington Magnum 180gr Jacketed Hollow Point Nickel-Plated Brass Case 20 Rounds

$30 95
(1.548 per round)
In Stock
Underwood Ammo XTP Jacketed Hollow Point 40 S&W 155gr 1300 fps Ammunition - 20 rounds

Underwood Ammo XTP Jacketed Hollow Point 40 S&W 155gr 1300 fps Ammunition - 20 rounds
$23 92
(1.196 per round)
In Stock
Underwood 9mm Luger +P 124gr XTP JHP Ammunition - 20 rounds

Underwood 9mm Luger +P 124gr XTP JHP Ammunition - 20 rounds

$21 05
(1.053 per round)
In Stock
Underwood Ammo 44 Rem Mag +P+ 340gr Flat Nose Gas Check Black Cherry Coated Hard Cast Brass Case 20 Rounds

Underwood Ammo 44 Rem Mag +P+ 340gr Flat Nose Gas Check Black Cherry Coated Hard Cast Brass Case 20 Rounds

$43 91
(2.196 per round)
In Stock
Underwood Ammo 40 S&W 200gr FN Hard Cast Flat Nose Ammunition - 20 rounds

Underwood Ammo 40 S&W 200gr FN Hard Cast Flat Nose Ammunition - 20 rounds

$25 82
(1.291 per round)
In Stock
Underwood Ammo 951Underwood Ammo 951 Custom Competition 8.6Blackout 300 GR Hollow Point Boat Tail 20 Per Box/10 Case - 20rd Box

Underwood Ammo 951Underwood Ammo 951 Custom Competition 8.6Blackout 300 GR Hollow Point Boat Tail 20 Per Box/10 Case - 20rd Box

$53 79
(2.690 per round)
In Stock
Underwood 10mm Auto 115gr Xtreme Defender Platinum Ammunition - 20 rounds

Underwood 10mm Auto 115gr Xtreme Defender Platinum Ammunition - 20 rounds

$34 46
(1.723 per round)
In Stock
1-24 of 90 Products
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