300 AAC Blackout Ammo For Sale

Name: Magtech First Defense 300 Blackout Ammo - 1000 Rounds of 123 Grain FMJ Ammunition
Brand: Magtech
Price: 674.99 USD
Availability: InStock

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The .300 AAC Blackout was developed to replace the 5.56 NATO during the Global War on Terror. The .30 caliber projectile increased the round's terminal performance while maintaining the same magazines and capacity. Shooting enthusiasts have also discovered the benefits of the 300 BLK, with many buying 300 Blackout ammo in bulk to save some money. Learn More

History of 300 AAC Blackout Ammo

Advanced Armament Corporation and Remington Defense developed the .300 AAC 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 BLK brands you sell?

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.

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.

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 Red Mountain Arsenal Ammunition

Red Mountain Arsenal 300 AAC Blackout Ammo - 20 Rounds of 125 Grain OTM Ammunition

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TINKER said:
Shoots great through my master piece MPA300BLK, This is a clone of a ar18/180, No rtf or eject, could cover 3 shots at 50 yards with a half dollar
Mr. Phox said:
Not my first box of Ammo from Red Mountain Arsenal but my first time ordering on Ammo.com and I am Blown away with the speedy delivery (3-4 days after order)!! Thank you I have found my gold mine LoL!! Thank you Guys you’ll be hearing from me again, SOON!!
Harold said:
Flawless with my two boxes. I got a very tight shot group and performed very well (AR-15 PSA 300BLK Pistol 8.5 inch / 1:8) Box says match grade but due to the shortage of ammo just about everywhere, I had nothing to compare it to. Box says "veteran owned" and that makes me happy - 100% in on that that you're one of us. Price might be a tad high but just not that significant - more important to have it. Nice ammo and would buy again.

Click To Purchase This 300 Blackout Barnes Ammunition

Barnes VOR-TX 300 AAC Blackout Ammo - 20 Rounds of 110 Grain TAC-TX FB Ammunition

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Dracul said:
This is an amazing load out of a 9-inch Sig MCX pistol. Ran 10 rounds at 25 yards in less than a inch diameter, at an average velocity of 2150 fps with energy of 1129 ft-lbs - this load is why 300BLK is THE thing to run in your AR pistol/SBR.

Click To Purchase This 300 Blackout Magtech Ammunition

Magtech First Defense 300 Blackout Ammo - 500 Rounds of 123 Grain FMJ Ammunition

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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

Barnes VOR-TX 300 Blackout Ammo - 20 Rounds of 120 Grain Polymer Tipped Ammunition

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Virtus said:
Hard hitting, supper accurate, puts EVERYTHING DOWN!

Click To Purchase This 300 Blackout Sellier and Bellot Ammunition

Sellier and Bellot 300 Blackout Ammo - 500 Rounds of 200 Grain FMJ Ammunition

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Skip said:
Fast shipping. Good quality. Thank you!!

Click To Purchase This 300 Blackout Hornady Ammunition

Hornady BLACK 300 AAC Blackout Ammo - 200 Rounds of 110 Grain V-MAX Ammunition in Field Box

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

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.

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 Ammo Incorporated Ammunition

Ammo Inc. 300 AAC Blackout Ammo - 20 Rounds of 150 Grain FMJ Ammunition

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Tim said:
I have had nothing but good results with all their ammo.

Click To Purchase This 300 Blackout Wolf Ammunition

Wolf 300 Blackout Ammo - 20 Rounds of 145 Grain FMJ Ammunition

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Steve said:
Good Ammo very happy with it never had a problem. The price is also not to bad I just wish that shipping was cheaper
Rhonda7764 said:
The best value, fastest shipping and great ammo.
WWIIIHundred said:
I normally don’t purchase steel or aluminum rounds, but it’s hard to say no when I literally can’t find or purchase any other types of ammo for my Windham Weaponry 300 BLK. I was worried that I would get a double feed or lots of jams. I honestly can say after shooting 100 rounds at the range at 100 yards; I didn’t get a single one with this ammo. My shot groups were decent too for what I consider sub par ammunition. I was honestly surprised at the results. I am definitely buying this ammo again. The best part is the ammo came to me instead of having to fight long lines hoping that there will still be ammo left on the shelf when it is my turn to grab some.
Savage300 said:
I normally don't buy steel or aluminum case ammunition but due to availability at this time I decided to give it a try. I was pleased to not have a single issue during target practice. I didn't spend time worrying about grouping but all 200 rounds I used worked flawlessly. Will definitely order more.

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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.

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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One of the things our customers love most about us is our fast shipping. In fact, they rave about it. When you browse our inventory, you’re seeing exactly what we have in our warehouse, on hand, ready to ship. That’s why, in general, orders placed before 3:00pm Eastern on a weekday will ship same day. Orders placed after this time, or on a weekend or holiday, will ship the next business day.

Included in every order is a donation to a pro-freedom organization that shares our values. After checking out, choose an organization from our Freedom Fighter Support list, and we will donate 1% of your purchase – all at no cost to you.

It is our mission to deliver your ammunition quickly at a great price – all while helping to support those who protect our freedoms to do so.

Happy Ammo.com Shooters

300 AAC Blackout Ammo For Sale

Magtech First Defense 300 Blackout Ammo - 1000 Rounds of 123 Grain FMJ Ammunition

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

Ammo Inc. stelTH 300 AAC Blackout Ammo - 200 Rounds of 220 Grain TMJ Ammunition

Winchester USA 300 AAC Blackout Ammo - 240 Rounds of 200 Grain Open Tip Ammunition

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

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

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

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

Ammo Inc. 300 AAC Blackout Ammo - 20 Rounds of 150 Grain FMJ Ammunition

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

Prvi Partizan 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

Winchester Super-X 300 AAC Blackout Ammo - 60 Rounds of 200 Grain Open Tip Ammunition

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

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

Wolf 300 Blackout Ammo - 20 Rounds of 145 Grain FMJ Ammunition

Fiocchi 300 AAC Blackout Ammo - 500 Rounds of 220 Grain HPBT MatchKing Ammunition

Ammo Inc. Hunt 300 AAC Blackout Ammo - 20 Rounds of 150 Grain SPBT Ammunition

Federal American Eagle Subsonic 300 AAC Blackout Ammo - 500 Rounds of 220 Grain OTM Ammunition

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

Federal American Eagle 300 Blackout Ammo - 20 Rounds of 220 Grain OTM Ammunition

Hornady BLACK 300 AAC Blackout Ammo - 200 Rounds of 208 Grain A-MAX Ammunition

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

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

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

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

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

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

Barnes Precision Match 300 AAC Blackout Ammo - 200 Rounds of 125 Grain OTM BT Ammunition

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

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

Underwood 300 AAC Blackout Ammo - 20 Rounds of 220 Grain HPBT Ammunition

Underwood 300 AAC Blackout Ammo - 20 Rounds of 115 Grain Controlled Chaos Ammunition

History of 300 AAC Blackout Ammo

What are the most popular .300 BLK brands you sell?

Best 300 Blackout Ammo for Specific Uses

Customer Reviews