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300 Blackout Ammo For Sale

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Engineered for AR-15 platforms, 300 Blackout ammo delivers powerful performance in both supersonic and subsonic loads. Perfect for suppressed shooting, hunting, and tactical applications. Need bulk options? Visit our bulk 300 Blackout ammo page to save some money. Learn More
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  1. Armscor 300 AAC Blackout Ammo - 200 Rounds of 147 Grain FMJ Ammunition

    Image of Armscor 300 AAC Blackout Ammo - 200 Rounds of 147 Grain FMJ Ammunition
    $148.99

    1 Review

    91 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 1826 FPS
    Muzzle Energy 1088 ft lbs
    • 200 Rounds
    • 74.5¢ per round
    • Made by Armscor

  2. Winchester USA 300 AAC Blackout Ammo - 200 Rounds of 125 Grain Open Tip Ammunition

    Image of Winchester USA 300 AAC Blackout Ammo - 200 Rounds of 125 Grain Open Tip Ammunition
    $154.99
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    74 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
    • 200 Rounds
    • 77.5¢ per round
    • Made by Winchester

  3. Winchester Super Suppressed 300 AAC Blackout Ammo - 200 Rounds of 200 Grain Open Tip Ammunition

    Image of Winchester Super Suppressed 300 AAC Blackout Ammo - 200 Rounds of 200 Grain Open Tip Ammunition

    $174.99

    $157.99

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    97 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

  4. Hornady Frontier 300 AAC Blackout Ammo - 200 Rounds of 125 Grain FMJ Ammunition

    Image of Hornady Frontier 300 AAC Blackout Ammo - 200 Rounds of 125 Grain FMJ Ammunition
    $164.99
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    25 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
    • 82.5¢ per round
    • Made by Hornady

  5. Winchester Deer Season XP 300 AAC Blackout Ammo - 200 Rounds of 150 Grain Extreme Point Ammunition

    Image of Winchester Deer Season XP 300 AAC Blackout Ammo - 200 Rounds of 150 Grain Extreme Point Ammunition
    $229.99
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    13 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 1900 FPS
    Muzzle Energy 1202 ft lbs

  6. Remington UMC 300 AAC Blackout Ammo - 200 Rounds of 150 Grain FMJ Ammunition

    Image of Remington UMC 300 AAC Blackout Ammo - 200 Rounds of 150 Grain FMJ Ammunition
    $244.99
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    3 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 1905 FPS
    Muzzle Energy 1209 ft lbs
    • 200 Rounds
    • $1.22 per round
    • Made by Remington

  7. Hornady 300 Blackout Ammo - 200 Rounds of 190 Grain Subxonic Polymer Tipped Ammunition

    Image of Hornady 300 Blackout Ammo - 200 Rounds of 190 Grain Subxonic Polymer Tipped Ammunition

    $314.99

    $279.99

    2 Reviews

    92 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
    • $1.4 per round
    • Made by Hornady

  8. Hornady 300 AAC Blackout Ammo - 200 Rounds of 110 Grain V-MAX Ammunition

    Image of Hornady 300 AAC Blackout Ammo - 200 Rounds of 110 Grain V-MAX Ammunition
    $279.99
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    35 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
    • $1.4 per round
    • Made by Hornady

  9. Hornady BLACK 300 AAC Blackout Ammo - 200 Rounds of 208 Grain ELD Match Ammunition

    Image of Hornady BLACK 300 AAC Blackout Ammo - 200 Rounds of 208 Grain ELD Match Ammunition
    $289.99
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    63 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type ELD Match
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 1020 FPS
    Muzzle Energy 480 ft lbs
    • 200 Rounds
    • $1.45 per round
    • Made by Hornady

  10. Hornady Custom 300 AAC Blackout Ammo - 200 Rounds of 135 Grain FTX Ammunition

    Image of Hornady Custom 300 AAC Blackout Ammo - 200 Rounds of 135 Grain FTX Ammunition
    $329.99
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    2 In stock now

    1 2 3 4 5 6 7 8 9 +10
    Bullet type FTX
    Primer Type Boxer
    Casing Type Brass
    Condition New
    Muzzle Velocity 2085 FPS
    Muzzle Energy 1303 ft lbs
    • 200 Rounds
    • $1.65 per round
    • Made by Hornady

Overview of 300 Blackout Ammo

Advanced Armament Corporation and Remington Defense developed the 300 Blackout in 2010 for increased terminal performance over the 5.56 NATO while maintaining the same rifle platform and magazine capacity.

It has become a favorite of carbine shooters worldwide.

What are the most popular 300 Blackout brands you sell?

For heavy subsonic loads, explore our selection of 300 Blackout 220 Grain Ammo ideal for suppressed shooting. If you’re deciding between grain weights for hunting, defense, or suppressed use, read the best grain for 300 Blackout guide.

You can filter our entire selection using the left sidebar to see which brands we currently have in stock and available using the Manufacturers filter. You can also filter by attributes such as Bullet Type, Bullet Weight, Casing Type, and Primer Type to find what you need.

What Is Subsonic 300 Blackout Ammo and Why Use It?

Subsonic 300 Blackout ammo is engineered to travel below the speed of sound (approximately 1,100 feet per second), making it significantly quieter than supersonic alternatives, especially when paired with a suppressor. Subsonic 300 BLK rounds are typically heavier, with common options like 220 grain 300 Blackout loads providing excellent energy transfer at close range with reduced recoil and noise.

Designed with stealth and comfort in mind, subsonic 300 BLK is a top choice for suppressed shooting, home defense, and hog hunting in close-quarters environments. The heavier bullets retain momentum well, and while they sacrifice some long-range performance, their quiet operation makes them ideal for tactical use or backyard shooting where sound control matters.

If you're deciding between subsonic and supersonic options, or want a breakdown by use case, check out our full guide on the best subsonic 300 Blackout ammo. You can also explore the ballistics of 300 Blackout to compare how different loads perform in terms of velocity, energy, and drop.

Best 300 Blackout Ammo for Specific Uses

Use Case Details
Best 300 BLK Ammo For A 7.5" Barrel Best Overall: Barnes Precision Match 125 grain.
Runner-Up: Black Hills 110 grain TTSX.
Best 300 BLK Ammo For Hog Hunting Best Overall: Barnes VOR-TX 110 grain TAC-TX FB.
Runner-Up: Hornady Subsonic 190 grain Sub-X.
Best 300 BLK Subsonic Ammo Best Overall: Hornady Subsonic 190 grain Sub-X.
Runner-Up: Nosler 220 grain Ballistic Tip.

You can also check out our in-depth look at 300 Blackout ballistics from all of the popular ammo manufacturers if you're in search of ballistics data for your favorite factory 300 BLK load.


Sam Jacobs
Written by
Sam Jacobs

Customer Reviews

Click To Purchase This 300 Blackout Armscor Ammunition
Armscor 300 AAC Blackout Ammo - 200 Rounds of 147 Grain FMJ Ammunition
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  • Bird dog said:

    Love them

Click To Purchase This 300 Blackout Hornady Ammunition
Hornady 300 Blackout Ammo - 200 Rounds of 190 Grain Subxonic Polymer Tipped Ammunition
Add review
  • Big T. said:

    This is my second purchase of this ammo. The first purchase was 60 rounds. I had a great time zeroing and shoot the rifle suppressed. This ammo out performed my expectations. This purchase was 200 rounds for $342.00 including shipping. So $1.60 delivered to the front door was worth it to me. Happy shooting.

  • 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.