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  1. Caliber
    12 Gauge
Brand
  1. Aguila 2 items
  2. American Tactical Imports 4 items
  3. Browning 1 item
  4. Estate Cartridge Company 5 items
  5. Federal Ammunition 47 items
  6. Fiocchi Ammunition 4 items
  7. Hornady 12 items
  8. Kent Cartridge 51 items
  9. Panzer Arms 2 items
  10. Remington 2 items
  11. Rio Shotshells 4 items
  12. Rogue Ammunition 6 items
  13. Sellier & Bellot 3 items
  14. Winchester 4 items
Caliber
  1. 12 Gauge 147 items
  2. 16 Gauge 2 items
  3. 20 Gauge 35 items
  4. 28 Gauge 12 items
  5. 410 Gauge 12 items
Shot Size
  1. 00 (Buck) 14 items
  2. 000 (Buck) 1 item
  3. 1 (Steel) 3 items
  4. 2 & 4 (Steel) 3 items
  5. 2 (Steel) 9 items
  6. 3 & 5 (Steel) 1 item
  7. 3 (Steel) 9 items
  8. 4 & 6 (Steel) 1 item
  9. 4 (Buck) 2 items
  10. 4 (Lead) 4 items
  11. 4 (Steel) 6 items
  12. 5 (Lead) 7 items
  13. 5 (Steel) 3 items
  14. 6 (Lead) 6 items
  15. 6 (Steel) 7 items
  16. 7 (Steel) 4 items
  17. 7.5 (Lead) 22 items
  18. 7.5 (Steel) 2 items
  19. 8 (Lead) 12 items
  20. 8/9 (Steel) 2 items
  21. 9 (Lead) 1 item
  22. 9 (Steel) 2 items
  23. BB & 2 (Steel) 2 items
  24. BB & 7 (Steel) 1 item
  25. BB (Lead) 1 item
  26. BB (Steel) 8 items
  27. BBB (Steel) 2 items
  28. Rifled Slug 8 items
  29. Sabot Slug 3 items
Material
  1. Brass 74 items
  2. Brass / Steel 1 item
  3. Brass-Plated Steel 4 items
  4. Nickel 38 items
  5. Nickel-Plated Brass 29 items
Bullet Weight
  1. 1 1/16 Oz. 3 items
  2. 1 1/2 Oz. 9 items
  3. 1 1/4 Oz. 29 items
  4. 1 1/8 Oz. 36 items
  5. 1 3/16 Oz 1 item
  6. 1 3/4 Oz. 4 items
  7. 1 3/8 Oz. 12 items
  8. 1 5/8 Oz. 1 item
  9. 1 Oz. 27 items
  10. 2 1/2 Oz 3 items
  11. 2 1/4 Oz. 4 items
  12. 2 Oz. 1 item
  13. 5/8 Oz. 1 item
  14. 7/8 Oz. 1 item
  15. 300 Grain 3 items
  16. 325 Grain 1 item
Muzzle Velocity
  1. 900 FPS 1 item
  2. 1140 FPS 1 item
  3. 1145 FPS 6 items
  4. 1175 FPS 4 items
  5. 1180 FPS 7 items
  6. 1181 FPS 1 item
  7. 1190 FPS 3 items
  8. 1200 FPS 8 items
  9. 1210 FPS 1 item
  10. 1214 FPS 1 item
  11. 1235 FPS 1 item
  12. 1250 FPS 6 items
  13. 1255 FPS 3 items
  14. 1260 FPS 2 items
  15. 1280 FPS 1 item
  16. 1285 FPS 1 item
  17. 1290 FPS 6 items
  18. 1300 FPS 11 items
  19. 1310 FPS 1 item
  20. 1325 FPS 7 items
  21. 1330 FPS 3 items
  22. 1345 FPS 5 items
  23. 1350 FPS 5 items
  24. 1375 FPS 2 items
  25. 1400 FPS 6 items
  26. 1450 FPS 11 items
  27. 1470 FPS 1 item
  28. 1475 FPS 2 items
  29. 1500 FPS 11 items
  30. 1550 FPS 8 items
  31. 1560 FPS 6 items
  32. 1575 FPS 1 item
  33. 1600 FPS 5 items
  34. 1635 FPS 4 items
  35. 1640 FPS 1 item
  36. 1650 FPS 1 item
  37. 1825 FPS 1 item
  38. 1950 FPS 1 item
  39. 2000 FPS 1 item
Applications
  1. Defensive 10 items
  2. Hunting 108 items
  3. Target 30 items
Round Count
  1. 5 21 items
  2. 10 14 items
  3. 25 107 items
  4. 100 4 items
  5. 200 3 items
Inventory
  1. In Stock 115 items
  2. Out of Stock 32 items
Customer Rating
  1. 5
    41 items
  2. 4
    & up     54 items
  3. 3
    & up     55 items

Shotgun Ammo for Sale

Shop Shotgun Ammo Online — 12 Gauge, 20 Gauge, .410 & More

Looking for the best shotgun ammo for hunting, sport shooting, or home defense? GunMag Warehouse makes it easy to buy shotgun ammo online at unbeatable prices, with a huge selection of gauges and brands in stock and ready to ship. From 12 gauge and 20 gauge ammo to hard-to-find .410 shotgun shells, we’ve got you covered.

Quickly narrow down our selection by gauge, brand, load type, or application — whether you’re stocking up for a hunting trip, searching for bulk shotgun ammo, or need the best home defense shotgun ammunition.

We carry a full lineup of trusted names like Rio Shotshells, Panzer Arms, Federal Ammunition, and Hornady with options for buckshot, birdshot, and slugs in a variety of gauges. Popular choices include:

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  32. Kent Cartridge Fasteel+ Bayou Blend 3" 12 Gauge Ammo 1 3/8oz #2 and #4 Shot 100 Shells
    Kent Cartridge Fasteel+ Bayou Blend 3" 12 Gauge Ammo 1 3/8oz #2 and #4 Shot 100 Shells
    Rebate Available
    $144.99 $106.99 Save $38.00 ($1.07 per round)
  33. Kent Cartridge Fasteel+ Bayou Blend 3" 12 Gauge Ammo 1 1/4oz #3 and #5 Shot 100 Shells
    Kent Cartridge Fasteel+ Bayou Blend 3" 12 Gauge Ammo 1 1/4oz #3 and #5 Shot 100 Shells
    Rebate Available
    $139.99 $104.99 Save $35.00 ($1.05 per round)
  36. Aguila Minishell 1.75" 12ga Ammo 5/8oz #7.5 Shot 25 Shells
    Aguila Minishell 1.75" 12ga Ammo 5/8oz #7.5 Shot 25 Shells
    Out of stock
    $23.99 $15.99 Save $8.00 ($0.64 per round)
  37. Sellier & Bellot Shotgun 2.75" 12 Gauge Ammo 1oz Rifled Slug 25 Shells
    Sellier & Bellot Shotgun 2.75" 12 Gauge Ammo 1oz Rifled Slug 25 Shells
    Out of stock
    (2)
    $49.99 $27.49 Save $22.50 ($1.10 per round)
  38. Kent Cartridge Fasteel+ 3" 12 Gauge Ammo 1 1/4oz #2 and #4 Shot 25 Shells
    Kent Cartridge Fasteel+ 3" 12 Gauge Ammo 1 1/4oz #2 and #4 Shot 25 Shells
    Out of stock
    $33.99 $23.99 Save $10.00 ($0.96 per round)
  40. Kent Cartridge Ultimate Turkey 3" 12 Gauge Ammo 1 3/4oz #5 Shot 10 Shells
    Kent Cartridge Ultimate Turkey 3" 12 Gauge Ammo 1 3/4oz #5 Shot 10 Shells
    Out of stock
    $14.99 $11.99 Save $3.00 ($1.20 per round)
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Frequently Asked Questions

What Does Gauge Mean in Shotguns?

Like caliber, gauge refers to the size of the firearm’s chamber and ammunition, but it works slightly differently. Whereas caliber measures the bore’s size in inches, shotgun gauge shows how many lead balls with the same diameter as the bore it would take to equal one pound of lead.

A higher gauge means a smaller bore, as a pound of lead divided into 20 would result in smaller pieces than dividing a pound into 12. As such, 12 gauge shotguns have a larger barrel than 20 gauge shotguns, and by the same token, 12 gauge shells are bigger in diameter.

The one notable exception is .410 bore, which follows the same conventions as caliber. Shotguns chambered in .410 bore have a .41-inch barrel diameter, and this is the only shotgun ammo size designated this way.

What’s the Best Shotgun Ammo for Home Defense?

Most shooters would agree that the 12 gauge is the best shotgun ammo for home defense. In addition to being widely available, it offers a good balance between stopping power and controllability.

Larger options will send more lead toward your target, which may increase their effectiveness, but it can also mean more collateral damage. Some argue that the smaller 20 gauge works well for self-defense because it produces less recoil, but keep in mind that it will deliver a smaller payload.

When shopping for defensive ammo, you should also keep shot size in mind. Regardless of your gauge, 00 buckshot is a solid option that balances stopping power with a manageable spread.

What Is the Best Shotgun Ammo for Hunting?

The best shotgun ammo for hunting depends on what kind of game you’re after. As you might expect, the ever-popular 12 gauge is a good all-around pick, ideal for medium-sized game like deer. Bird hunters often prefer smaller 28 gauge or 20 gauge shotshells, as they’ll kick less but are still enough to take down smaller prey.

If you’re hunting squirrels or other small game, .410 bore may be the way to go. These are also a favorite for taking care of pests like snakes and moles without causing much damage to the surrounding area.