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Handgun Ammo

Shop Handgun Ammo Online — Top Calibers, Bulk Deals & Trusted Brands

Looking for the best place to buy handgun ammo online? GunMag Warehouse carries a huge selection of handgun ammunition at the lowest prices — with every major caliber and brand in stock and ready to ship. Whether you’re training at the shooting range, carrying for self-defense, or gearing up for competition, we’ve got the ammo you need.

Browse our selection and quickly narrow down by caliber, brand, grain weight, or application. From classics like 9mm, .45 ACP, and .38 Special to niche options like .40 S&W, 10mm, and .380 ACP, you’ll find options for every use case. 

We stock the top handgun ammo brands shooters trust, including Federal Ammunition, Hornady, Remington, Speer, and PMC Ammunition. With bulk handgun ammo in stock, frequent ammunition deals, and extensive inventory, GunMag Warehouse has earned its reputation as one of the best places to buy handgun ammo online.

Stock up today and never overpay for handgun ammunition again.

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  3. Hornady American Gunner .45 ACP Ammo 185gr XTP 20 Rounds
    Hornady American Gunner .45 ACP Ammo 185gr XTP 20 Rounds
    (2)
    $27.99 $16.99 Save $11.00 ($0.85 per round)
  4. Hornady Custom .40 S&W Ammo 155gr XTP 20 Rounds
    Hornady Custom .40 S&W Ammo 155gr XTP 20 Rounds
    $32.95 $18.49 Save $14.46 ($0.92 per round)
  5. Hornady Custom 10mm Auto Ammo 180gr XTP 20 Rounds
    Hornady Custom 10mm Auto Ammo 180gr XTP 20 Rounds
    (10)
    $32.95 $22.99 Save $9.96 ($1.15 per round)
  6. Hornady Subsonic .45 ACP Ammo 230gr XTP 20 Rounds
    Hornady Subsonic .45 ACP Ammo 230gr XTP 20 Rounds
    (6)
    $33.99 $21.99 Save $12.00 ($1.10 per round)
  9. Hornady 10mm Auto Ammo 155gr XTP 20 Rounds
    Hornady 10mm Auto Ammo 155gr XTP 20 Rounds
    (2)
    $29.99 $20.99 Save $9.00 ($1.05 per round)
  10. Hornady Subsonic .40 S&W Ammo 180gr XTP 20 Rounds
    Hornady Subsonic .40 S&W Ammo 180gr XTP 20 Rounds
    (1)
    $31.99 $20.99 Save $11.00 ($1.05 per round)
  11. Hornady Custom .45 ACP +P Ammo 230gr XTP 20 Rounds
    Hornady Custom .45 ACP +P Ammo 230gr XTP 20 Rounds
    (5)
    $33.99 $22.99 Save $11.00 ($1.15 per round)
  12. Hornady Custom .500 S&W Magnum Ammo 300gr FTX 20 Rounds
    Hornady Custom .500 S&W Magnum Ammo 300gr FTX 20 Rounds
    (2)
    $101.99 $68.99 Save $33.00 ($3.45 per round)
  15. Hornady Custom .44 Magnum Ammo 240gr XTP 20 Rounds
    Hornady Custom .44 Magnum Ammo 240gr XTP 20 Rounds
    (7)
    $38.99 $25.49 Save $13.50 ($1.27 per round)
  16. Hornady Critical Defense .45 ACP +P Ammo 185gr FTX 20 Rounds
    Hornady Critical Defense .45 ACP +P Ammo 185gr FTX 20 Rounds
    $28.99 $26.99 Save $2.00 ($1.35 per round)
  18. Hornady American Gunner .40 S&W Ammo 180gr XTP 20 Rounds
    Hornady American Gunner .40 S&W Ammo 180gr XTP 20 Rounds
    (3)
    $27.95 $18.99 Save $8.96 ($0.95 per round)
  20. Hornady Custom .454 Casull Ammo 300gr XTP Mag 20 Rounds
    Hornady Custom .454 Casull Ammo 300gr XTP Mag 20 Rounds
    (2)
    $51.95 $32.99 Save $18.96 ($1.65 per round)
  21. Hornady Custom .44 Magnum Ammo 200gr XTP 20 Rounds
    Hornady Custom .44 Magnum Ammo 200gr XTP 20 Rounds
    $35.99 $25.49 Save $10.50 ($1.27 per round)
  24. Hornady Custom .454 Casull Ammo 240gr XTP Mag 20 Rounds
    Hornady Custom .454 Casull Ammo 240gr XTP Mag 20 Rounds
    (2)
    $51.99 $35.49 Save $16.50 ($1.77 per round)
  26. Hornady Custom .480 Ruger Ammo 325gr XTP Mag 20 Rounds
    Hornady Custom .480 Ruger Ammo 325gr XTP Mag 20 Rounds
    (1)
    $54.99 $36.99 Save $18.00 ($1.85 per round)
  30. Hornady Custom .44 Magnum Ammo 300gr XTP 20 Rounds
    Hornady Custom .44 Magnum Ammo 300gr XTP 20 Rounds
    (2)
    $35.99 $23.49 Save $12.50 ($1.17 per round)
  31. Hornady Custom .45 ACP Ammo 200gr XTP 20 Rounds
    Hornady Custom .45 ACP Ammo 200gr XTP 20 Rounds
    (1)
    $30.95 $20.99 Save $9.96 ($1.05 per round)
  34. Hornady Handgun Hunter .40 S&W Ammo 135gr MonoFlex 20 Rounds
    Hornady Handgun Hunter .40 S&W Ammo 135gr MonoFlex 20 Rounds
    $50.99 $29.99 Save $21.00 ($1.50 per round)
  36. Hornady Custom .50 AE Ammo 300gr XTP 20 Rounds
    Hornady Custom .50 AE Ammo 300gr XTP 20 Rounds
    Out of stock
    (2)
    $64.99 $34.99 Save $30.00 ($1.75 per round)
  37. Hornady Backcountry Defense .460 S&W Magnum Ammo 300gr DGH 20 Rounds
    Hornady Backcountry Defense .460 S&W Magnum Ammo 300gr DGH 20 Rounds
    Out of stock
    (1)
    $63.99 $38.99 Save $25.00 ($1.95 per round)
  38. Hornady Custom .460 S&W Magnum Ammo 200gr FTX 20 Rounds
    Hornady Custom .460 S&W Magnum Ammo 200gr FTX 20 Rounds
    Out of stock
    (1)
    $54.99 $35.99 Save $19.00 ($1.80 per round)
  39. Hornady Critical Defense .45 ACP Ammo 185gr FTX 20 Rounds
    Hornady Critical Defense .45 ACP Ammo 185gr FTX 20 Rounds
    Out of stock
    (6)
    $38.99 $24.49 Save $14.50 ($1.22 per round)
  40. Hornady Critical Defense .44 Special Ammo 165gr FTX 20 Rounds
    Hornady Critical Defense .44 Special Ammo 165gr FTX 20 Rounds
    Out of stock
    (1)
    $36.99 $23.99 Save $13.00 ($1.20 per round)
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Frequently Asked Questions

What Is the Best Handgun Ammo?

The best handgun ammo depends on several factors, including your firearm, intended use case, and budget.

The first thing to consider is your caliber. While some pistols can accommodate slightly different-sized rounds, it’s not always advisable. For example, it’s technically possible to shoot .380 ACP in a 9mm handgun, but the extra room in the chamber can lead to unsafe case expansion.

Beyond choosing the right size, the best handgun ammunition depends on what you’ll use it for. You’ll probably want hollow points for self-defense purposes, but something with a full metal jacket (FMJ) is ideal for target practice and precision shooting.

Across all uses, brands like Hornady and PMC have earned reputations for being among the best thanks to their reliability and high precision. Here at GunMag Warehouse, we proudly display user reviews so you can determine if a specific product line is right for you if you’re unfamiliar with leading manufacturers. Your ammo’s price-per-round is also worth considering to find the best bang for your buck.

What Is the Cheapest Handgun Ammo?

Ammunition prices often vary between brands, but generally speaking, the .22 Long Rifle and 9mm Luger are the cheapest handgun calibers you’ll find.

The .22 LR has been around for over 100 years and is a relatively simple cartridge, so companies can manufacture it cheaply. As another tried-and-true round, the 9mm Luger is one of the most popular handgun cartridges today, so the sheer scale of its production leads to lower prices.

Keep in mind that the lowest total price doesn’t always equal the cheapest handgun ammo per round. Larger round counts often come with a lower per-bullet price, giving you a better overall deal. GunMag Warehouse also offers bulk discounts and frequent ammo sales, offering even better prices.

What Is the Most Common Handgun Ammo?

The 9mm Luger dominates the handgun ammo market. It’s the most popular defensive round in the U.S., and it’s appeared in multiple military and police applications over the years and across countries. If you want handgun ammo that’s easy to find and offers plenty of variety, start with the 9mm.

Beyond that, the .40 S&W and .45 ACP are also among the most common handgun cartridges around. You’ll find options from many brands for multiple price ranges and use cases among these.

Bear in mind that popular does not always mean best. The 9mm Luger and .45 ACP are excellent for self-defense, but you may want something else for hunting. Of course, you can only shoot what your firearm will chamber, too.