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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 88 Products
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Underwood Ammo 10mm Auto 220gr Black Cherry Coated Hard Cast Flat Nose Nickel-Plated Brass 20rd

Underwood Ammo 10mm Auto 220gr Black Cherry Coated Hard Cast Flat Nose Nickel-Plated Brass 20rd

$26 81
(1.341 per round)
In Stock
Underwood Ammo .50 Beowulf 350gr XTP Jacketed Hollow Point Brass Case 20 Rounds

Underwood Ammo .50 Beowulf 350gr XTP Jacketed Hollow Point Brass Case 20 Rounds

$45 79
(2.290 per round)
In Stock
Underwood Ammo Sporting 10mm Auto 135gr Jacketed Hollow Point Nickel Plated Brass Case 20 Rounds

Underwood Ammo Sporting 10mm Auto 135gr Jacketed Hollow Point Nickel Plated Brass Case 20 Rounds

$25 95
(1.298 per round)
In Stock
Underwood Ammo XTP .357 Magnum 125gr Jacketed Hollow Point Nickel Plated Brass Case 20 Rounds.

Underwood Ammo XTP .357 Magnum 125gr Jacketed Hollow Point Nickel Plated Brass Case 20 Rounds.

$22 01
(1.101 per round)
In Stock
Underwood Ammo Xtreme Penetrator .357 Magnum 140gr Solid Copper 20 Rounds Brass Case

Underwood Ammo Xtreme Penetrator .357 Magnum 140gr Solid Copper 20 Rounds Brass Case

$44 97
(2.249 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

$16 44
(0.329 per round)
In Stock
Underwood Match .300 AAC Blackout 220gr Hollow Point Boat Tail Nickel-Plated Brass Case 20 Rounds

Underwood Match .300 AAC Blackout 220gr Hollow Point Boat Tail Nickel-Plated Brass Case 20 Rounds

$34 79
(1.740 per round)
In Stock
Underwood Ammo 45 Colt 250gr Full Metal Jacket Flat Nose Nickel-Plated Brass Case 50 Rounds

Underwood Ammo 45 Colt 250gr Full Metal Jacket Flat Nose Nickel-Plated Brass Case 50 Rounds

$51 67
(1.033 per round)
In Stock
Underwood Ammo Black Cherry Hard Cast 10mm Auto 200gr Flat Nose 20rd Nickel Plated Brass Case

Underwood Ammo Black Cherry Hard Cast 10mm Auto 200gr Flat Nose 20rd Nickel Plated Brass Case
$27 95
(1.398 per round)
In Stock
Underwood Ammo XTP .500 S&W Magnum 350gr JHP 1912 fps Ammunition - 20 rounds

Underwood Ammo XTP .500 S&W Magnum 350gr JHP 1912 fps Ammunition - 20 rounds

$53 79
(2.690 per round)
In Stock
Underwood Ammo Xtreme Penetrator 10mm Auto 140gr Solid Copper 20rd Nickel-Plated Brass Case

Underwood Ammo Xtreme Penetrator 10mm Auto 140gr Solid Copper 20rd Nickel-Plated Brass Case

$42 92
(2.146 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 Ammo 113 9mm+P+ 124 GR Jacketed Hollow Point 20 Per Box

Underwood Ammo 113 9mm+P+ 124 GR Jacketed Hollow Point 20 Per Box

$21 96
(1.098 per round)
In Stock
Underwood Xtreme Defender .45 ACP +P 135gr Monolithic Solid Ammunition - 20 rounds - 844

Underwood Xtreme Defender .45 ACP +P 135gr Monolithic Solid Ammunition - 20 rounds - 844

$36 35
(1.818 per round)
In Stock
Underwood Ammo 460 S&W Magnum 360gr Hard Cast Long Flat Nose Gas Check 20rd Nickel-Plated Brass Case

Underwood Ammo 460 S&W Magnum 360gr Hard Cast Long Flat Nose Gas Check 20rd Nickel-Plated Brass Case

$61 24
(3.062 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

$39 79
(1.990 per round)
In Stock
Underwood Ammo Xtreme Penetrator 9mm Luger +P+ 115gr Solid Copper Bullet 20 Rounds Nickel-Plated Case.

Underwood Ammo Xtreme Penetrator 9mm Luger +P+ 115gr Solid Copper Bullet 20 Rounds Nickel-Plated Case.

$20 24
(1.012 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 .357 SIG 115gr Jacketed Hollow Point 20 Round Nickel Plated Brass Case

Underwood Ammo .357 SIG 115gr Jacketed Hollow Point 20 Round Nickel Plated Brass Case

$22 79
(1.140 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 Xtreme Penetrator 9mm Luger 115gr Solid Copper 20 Rounds Nickel-Plated Brass Case

Underwood Ammo Xtreme Penetrator 9mm Luger 115gr Solid Copper 20 Rounds Nickel-Plated Brass Case

$32 79
(1.640 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

$30 79
(1.540 per round)
In Stock
Only 6 Left!
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 Ammo Extreme Terminal Performance .380 ACP +P 90gr XTP Jacketed Hollow Point 20 Rounds Nickel-Plated Brass.

Underwood Ammo Extreme Terminal Performance .380 ACP +P 90gr XTP Jacketed Hollow Point 20 Rounds Nickel-Plated Brass.

$19 96
(0.998 per round)
In Stock
1-24 of 88 Products
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