300 Blackout Ammo For Sale

Name: Armscor 300 AAC Blackout Ammo - 200 Rounds of 147 Grain FMJ Ammunition
Brand: Armscor
Price: 148.99 USD
Availability: InStock
Rating: 5 (1 reviews)

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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

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.

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 Magtech Ammunition

Magtech Subsonic 300 Blackout Ammo - 50 Rounds of 200 Grain FMJ Ammunition

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Bushman501 said:
Was a little iffy about performance, seeing a couple of negative reviews. Performed fine. No issues, no jams, no problem. Great value. At the range I frequent, with range membership, I get about 50% off and comes out to about $325 per 1,000 rounds. I ordered 2,000 rounds of these and paid just under $500...realizing about $100 saving.
ernie said:
great service, great product, great price. what more can I say.

Click To Purchase This 300 Blackout Winchester Ammunition

Winchester Super Suppressed 300 AAC Blackout Ammo - 20 Rounds of 200 Grain Open Tip Ammunition

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GV said:
Had a couple issues with feeding but swapped to a heavier buffer/spring and it ran flawlessly
PoolGuy said:
The ammunition runs fine out of an SBR. I purchased this ammo in hopes that it would function in my 10.5 inch CMMG banshee. As one would expect the ammo runs fairly consistent without a suppressor. With a suppressor it’s no different than most other options that you can find for a better price. The ammunition arrived to me in a crush box, but all were intact with no damage. I rate the quality of the ammunition as a four out of 10 stars.

Click To Purchase This 300 Blackout Sellier and Bellot Ammunition

Sellier and Bellot 300 Blackout Ammo - 20 Rounds of 124 Grain FMJ Ammunition

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aeroflame said:
I shot a bunch of Federal, Sig Sauer, but my AR really liked this stuff out at 100 yards. The Sig performed well too. The Federal was all over the place. I was shooting light grains. Good clean quality accurate ammo. The price is great too.

Click To Purchase This 300 Blackout Hornady Ammunition

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

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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.

Hornady Subsonic 300 Blackout Ammo - 20 Rounds of 190 Grain Polymer Tipped Ammunition

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JB said:
I used these rounds a couple of weeks ago hog hunting. 2 bullets fired, 2 hogs down! 97 lbs and 104lbs. Good head shot placement. They both went down immediately, didn't even take one step.

Bullet Points: 300 Blackout Ammo

Developed in 2010 with the intention of offering a .30 caliber cartridge with improved performance over the currently used 5.56mm, the .300 Blackout is compatible with the M4 weapon system – making it an ideal replacement for military use during the global war on terror.
With the use of a .300 Blackout supersonic load, the max effective range is listed at 500 yards. With subsonic loads, it's listed at 220 yards.
For civilian use, .300 Blackout ammo increases versatility of the AR-15 platform – allowing hunters to easily harvest medium-sized game animals with stellar accuracy and controllable recoil.
Downrange, the .300 Blackout is accurate enough to deliver groups smaller than one inch at 100 yards.

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300 Blackout Ammo For Sale

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

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

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

300 AAC Blackout - 124 Grain FMJ - Sellier & Bellot - 500 Rounds

Winchester USA 300 AAC Blackout Ammo - 20 Rounds of 125 Grain Open Tip Ammunition

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

Magtech Subsonic 300 Blackout Ammo - 500 Rounds of 200 Grain FMJ Ammunition

Magtech Subsonic 300 Blackout Ammo - 50 Rounds of 200 Grain FMJ Ammunition

Sellier and Bellot 300 Blackout Ammo - 500 Rounds of 147 Grain FMJ Ammunition

Hornady Frontier 300 AAC Blackout Ammo - 20 Rounds of 125 Grain FMJ Ammunition

Winchester Super Suppressed 300 AAC Blackout Ammo - 20 Rounds of 200 Grain Open Tip Ammunition

Federal American Eagle 300 AAC Blackout Ammo - 500 Rounds of 150 Grain FMJ Ammunition

Sellier and Bellot 300 Blackout Ammo - 20 Rounds of 124 Grain FMJ Ammunition

Federal American Eagle 300 Blackout Ammo - 20 Rounds of 150 Grain FMJ Ammunition

Winchester USA Ready 300 AAC Blackout Ammo - 20 Rounds of 125 Grain OT Ammunition

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

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

Hornady Frontier 300 AAC Blackout Ammo - 20 Rounds of 208 Grain FMJ Ammunition

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

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

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

Hornady 300 AAC Blackout Ammo - 20 Rounds of 110 Grain V-MAX Ammunition

Hornady BLACK 300 AAC Blackout Ammo - 20 Rounds of 208 Grain ELD Match Ammunition

Hornady Subsonic 300 Blackout Ammo - 20 Rounds of 190 Grain Polymer Tipped Ammunition

Black Hills Ammunition 300 AAC Blackout Ammo - 20 Rounds of 125 Grain OTM Ammunition

Hornady BLACK 300 AAC Blackout Ammo - 20 Rounds of 110 Grain NTX Ammunition

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

Hornady Custom 300 AAC Blackout Ammo - 20 Rounds of 110 Grain CX Ammunition

Hornady 300 Blackout Ammo - 20 Rounds of 135 Grain FTX Ammunition

Black Hills Ammunition 300 Blackout Ammo - 20 Rounds of 220 Grain OTM Ammunition

Overview of 300 Blackout Ammo

What are the most popular 300 Blackout brands you sell?

What Is Subsonic 300 Blackout Ammo and Why Use It?

Best 300 Blackout Ammo for Specific Uses

Customer Reviews