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Bulk 300 AAC Blackout Ammo For Sale

Live Inventory
Check out our bulk 300 Blackout ammo, including subsonic rounds from Sellier and Bellot, Winchester, and more. For smaller quantities, visit our 300 Blackout ammo page. This 30-caliber round boosts the AR-15 platform with extra punch. Learn More
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  1. Bulk 300 Blackout Ammo - 200 Rounds of Bulk 147 Grain FMJ Ammunition from Winchester

    $159.99

    84 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 1920 FPS
    Muzzle Energy 1203 ft lbs
  2. Bulk 300 Blackout Ammo - 200 Rounds of Bulk 125 Grain Open Tip Ammunition from Winchester

    $169.99

    51 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type Open Tip
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2185 FPS
    Muzzle Energy 1325 ft lbs
  3. Bulk 300 Blackout Ammo - 200 Rounds of Bulk 110 Grain V-MAX Ammunition from Ammo Incorporated

    $174.99

    18 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type V-MAX
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2400 FPS
    Muzzle Energy 1407 ft lbs
    • 200 Rounds
    • 87.5¢ per round
    • Made by Ammo Incorporated
  4. Bulk 300 Blackout Ammo - 200 Rounds of Bulk 220 Grain TMJ Ammunition from Stelth

    $179.99

    30 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type TMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 1071 FPS
    Muzzle Energy 560 ft lbs
    • 200 Rounds
    • 90¢ per round
    • Made by Stelth
  5. Bulk 300 Blackout Ammo - 200 Rounds of Bulk 200 Grain Open Tip Ammunition from Winchester

    $184.99

    93 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type Open Tip
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 1060 FPS
    Muzzle Energy 499 ft lbs
  6. Bulk 300 Blackout Ammo - 200 Rounds of Bulk 125 Grain FMJ Ammunition from Hornady

    $194.99

    26 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2175 FPS
    Muzzle Energy 1313 ft lbs
    • 200 Rounds
    • 97.5¢ per round
    • Made by Hornady
  7. Bulk 300 Blackout Ammo - 200 Rounds of Bulk 110 Grain V-MAX Ammunition from Hornady

    $284.99

    41 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type V-MAX
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2375 FPS
    Muzzle Energy 1377 ft lbs
    • 200 Rounds
    • $1.42 per round
    • Made by Hornady
  8. Bulk 300 Blackout Ammo - 200 Rounds of Bulk 125 Grain OTM Ammunition from Barnes

    $299.99

    16 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type OTM
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2215 FPS
    Muzzle Energy 1362 ft lbs
    • 200 Rounds
    • $1.5 per round
    • Made by Barnes
  9. Bulk 300 Blackout Ammo - 200 Rounds of Bulk 190 Grain Polymer Tipped Ammunition from Hornady

    $314.99

    49 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type Polymer Tipped
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 1050 FPS
    Muzzle Energy 465 ft lbs
    • 200 Rounds
    • $1.57 per round
    • Made by Hornady
  10. Bulk 300 Blackout Ammo - 500 Rounds of Bulk 124 Grain FMJ Ammunition from Sellier and Bellot

    $399.99

    52 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2165 FPS
    Muzzle Energy 1285 ft lbs
  11. Bulk 300 Blackout Ammo - 500 Rounds of Bulk 150 Grain FMJ Ammunition from Federal

    $449.99

    74 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 1900 FPS
    • 500 Rounds
    • 90¢ per round
    • Made by Federal
  12. Bulk 300 Blackout Ammo - 500 Rounds of Bulk 220 Grain OTM Ammunition from Federal

    $594.99

    73 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type OTM
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 1000 FPS
    Muzzle Energy 488 ft lbs
    • 500 Rounds
    • $1.19 per round
    • Made by Federal
  13. Bulk 300 Blackout Ammo - 1000 Rounds of Bulk 125 Grain FMJ Ammunition from Prvi Partizan

    $824.99

    7 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FMJ
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2198 FPS
    Muzzle Energy 1340 ft lbs

History of Bulk 300 AAC Blackout Ammo

Initially developed by the Advanced Armament Corporation in 2010, the .300 AAC Blackout has become a staple for AR-15 enthusiasts seeking versatility and performance. This intermediate 30-caliber option offers superior energy at shorter ranges, making it ideal for tactical applications and home defense. Plus, its design for use with a suppressor and 9” barrel ensures it mimics the ballistics of the 7.62x39 with just a barrel change.

How will your .300 Blackout ammo be delivered?

Your ammo purchase will be shipped straight to your door in a discreet, unmarked package.

What’s the benefit of buying bulk .300 Blackout ammo?

  • You save more money: Buying in bulk significantly reduces your overall cost per round.
  • You’re ready for any situation: Bulk purchases ensure you’re always stocked, whether for a range day or an emergency.
  • You reduce the hassle of reordering: Bulk buying means less frequent orders, ensuring you always have ammo on hand.
  • You shoot more consistently: Consistent ammo supply can improve accuracy and performance by eliminating variations between different batches.
  • You support great causes: Ammo.com donates to freedom-loving charities with every purchase. See who we support here!

What are the most popular .300 Blackout brands which you sell in bulk?

You can filter our entire selection using the left sidebar to see which brands we currently have in-stock and available in bulk using the Manufacturers filter.

What is subsonic .300 BLK ammo?

Subsonic .300 BLK ammo is engineered to travel at speeds below the sound barrier, making it ideal for use with a suppressor for quieter shooting. This type of ammunition minimizes noise and recoil, making it perfect for stealth operations and target practice.

How does 300 BLK compare to other calibers?

Caliber Recoil Pros Cons
308 Slightly higher Long-range capability, high availability, versatile for hunting and target shooting Higher recoil, more expensive than some other calibers
5.56 Lower Long-range accuracy, lightweight, high availability, low recoil Less stopping power, not ideal for large game hunting
7.62x39 Slightly higher Proven combat effectiveness, affordable, good for short to medium range Limited long-range accuracy, overpenetration risk in home defense
223 Lower High velocity, flat trajectory, plentiful and affordable Less stopping power, limited for larger game
350 Legend Slightly higher Low recoil, legal in straight-walled cartridge states, effective for deer hunting Requires specific magazines for AR-15, limited range compared to bottleneck cartridges
458 SOCOM Significantly higher Extremely powerful, ideal for big game hunting, compatible with AR-15 platform High recoil, expensive ammo, limited range
6.8 SPC Slightly higher Longer effective range, higher muzzle energy, excellent for medium to large game hunting Requires special magazines, higher cost and less availability

For a comprehensive look at the performance of different 300 BLK rounds, explore our detailed guide on 300 BLK ballistics, which covers the ballistics data from all the popular ammo manufacturers.


Customer Reviews

  • wpro said:

    nice tight group, never any problems, use it in a 20in and 10in barrel, same group patterns in both guns. for the performance of the ammo and never any problems I only use magtech

  • Dino said:

    Hornady is top notch as we all know and the service and ease of ammo.com makes it thst much better.

  • RazorUSMC said:

    Bought this ammo for a Run N Gun competition, it worked falsely as it should. I reload my own but with the short notice of this shoot I did not have the time to reload my own. I have some to trust Hornady products as I use there Lock N Load AP Ammo plant press. This ammo was great and was super quiet with my 10.5" SBR I will be getting some more soon so I have the brass to save this time.