Browse our most popular ammunition calibers including 9mm, .223/5.56, .308 Winchester, 12 gauge, .22 LR, .45 ACP, 6.5 Creedmoor, and more. We stock deep inventory in the calibers shooters demand most, from Federal, Winchester, Hornady, PMC, Speer, and CCI with options for defensive carry, match competition, hunting, and high-volume training.
Whether you're looking for bulk 9mm FMJ for range practice, premium .308 hunting loads for deer season, match-grade 6.5 Creedmoor for precision shooting, or economical .22 LR for plinking, our popular calibers are in stock and ready to ship. Shop by caliber to find exactly what you need with competitive pricing and free shipping on qualifying orders.
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Underwood .223 Rem 55 Grain Controlled Chaos
Underwood AmmoYour Price $27.77Normal Price $43.99The development of this technology was the result of an animal control agency's request for a lead free bullet that would provide an extensive wound trauma with minimal pass through energy. Basically, the idea was to burst the bullet into numerous... -
Underwood .223 Rem. 60 Grain Varmint Ballistic Tip
Underwood AmmoYour Price $26.69Normal Price $30.99Varmints and predators beware! Nosler's ballistic Tip Varmint Bullets are designed for violent expansion upon impact. The bullet is tipped with a poly-carbonate tip which rapidly drives back forcing the thin jacket to expand and fragment. The heavy base... -
Underwood .380 ACP +p 100 Grain Flat Nose Hi-Tek Coated Hard Cast
Underwood AmmoYour Price $18.07Normal Price $20.99380 +P ammo is loaded to higher pressure levels, therefore please make sure that your firearm has the necessary chamber support for this round. If you have any doubts of whether or not your firearm is suitable for this ammunition please have a gunsmith... -
Underwood .380 ACP +p 90 Grain XTP
Underwood AmmoYour Price $17.22Normal Price $19.99Underwood Ammo™ XTP rounds are notable for their power and accuracy. We utilize Hornady eXtreme Terminal Performance (XTP) bullets which are designed for deep terminal penetration, great accuracy and controlled expansion. We combine Hornady... -
Underwood .380 ACP 100 Grain Flat Nose Black Cherry Coated Hard Cast
Underwood AmmoYour Price $18.07Normal Price $20.99Underwood Ammo’s hard cast featuring a new “Black Cherry” coating. Equipped with new enhancements from our previous Hi-Tek coating. Our “Black Cherry” coating is a polymer-based compound; its thermal stability allows... -
Underwood .40 S&W 115 Grain Xtreme Defender
Underwood AmmoYour Price $32.09Normal Price $35.99The Xtreme Defender is based on the popular Xtreme Penetrator product line. The XD ammunition has an optimized nose flute, total weight, and velocity to achieve a penetration depth up to 18 inches* with a permanent wound cavity (PWC) that is just simply... -
Underwood .40 S&W 140 Grain Maximum Expansion
Underwood AmmoYour Price $16.04Normal Price $39.99Lehigh's 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... -
Underwood .45 ACP +p 135 Grain Xtreme Defender
Underwood AmmoYour Price $32.71Normal Price $36.99The Xtreme Defender is based on the popular Xtreme Penetrator product line. The XD ammunition has an optimized nose flute, total weight, and velocity to achieve a penetration depth up to 18 inches* with a permanent wound cavity (PWC) that is just simply... -
Underwood .45 ACP +p 200 Grain Xtreme Penetrator Solid Monolithic
Underwood AmmoYour Price $47.36Normal Price $54.99Underwood Ammo™ combines our trademark power and precision with Lehigh Defense masterfully designed Xtreme Penetrator bullets - the result is one jaw dropping round. This round is solid copper and features a unique nose that maximizes penetration... -
Underwood 10mm 100 Grain Xtreme Defender
Underwood AmmoYour Price $26.74Normal Price $30.99The Xtreme Defender is based on the popular Xtreme Penetrator product line. The XD ammunition has an optimized nose flute, total weight, and velocity to achieve a penetration depth up to 18 inches* with a permanent wound cavity (PWC) that is just simply... -
Underwood 10mm 150 Grain Sporting Jacketed Hollow Point
Underwood AmmoYour Price $21.52Normal Price $24.99Whether you punch paper, shoot steel, or use your handgun for hunting, we ensure you have the finest accuracy, consistency, and overall quality. We utilize Nosler® Sporting Handgun™ bullets for their Alloy Jacket. Their tapered jacket is built... -
Underwood 10mm 180 Grain eXtreme Terminal Performance (XTP)
Underwood AmmoYour Price $22.38Normal Price $24.99Underwood Ammo™ XTP rounds are notable for their power and accuracy. We utilize Hornady eXtreme Terminal Performance (XTP) bullets which are designed for deep terminal penetration, great accuracy and controlled expansion. We combine Hornady...
