Ammunition Depot is your trusted destination when shopping for 300 Blackout Ammo. View our in stock selection of Bulk 300 AAC Blackout ammo and 300 Blackout Rifles, all from the manufacturers you trust. Learn More

300 Blackout Ammo / 300 AAC

About 300 Blackout / 300 AAC Ammo

Designed in 2009 and first introduced in 2010, 300 AAC Blackout ammo is an intermediate cartridge developed in the United States by Advanced Armament Corporation (AAC) for use in the M4 carbine.

The cartridge yields increased performance in shorter barrels and effective subsonic performance for suppressor use compared to 5.56mm NATO. Except for the barrel, 300 AAC Blackout utilizes standard 5.56mm NATO magazines and components.

While 5.56×45 NATO has relished widespread acceptance in military circles, the nature of various missions encountered by special operations groups often demands a caliber that provides more adequate performance.

To satisfy this need, the 300 AAC Blackout was developed. The caliber has a relatively small projectile with a high velocity that maintains performance at range and is designed to work with or without suppressors.

Common Names for 300 Blackout Ammo

Since its initial release over 13 years ago, 300 Blackout has become a formidable ammo choice and is utilized by military, law enforcement, and gun owners across the globe. Common designations include:

• 300 Blackout• 300 Blackout Ammo• 300 BLK
• 300 AAC• 300 AAC Ammo• 300 AAC Blackout Ammo

Regardless of your preferred terminology, 300 Blackout has continued to gain popularity over a short period, is readily available, and is an excellent choice for firearm owners searching for an accurate mid-range caliber.

300 Blackout / 300 AAC Ammo Benefits

Due to its popularity, 300 Blackout ammo / 300 AAC ammo is relatively inexpensive. In most cases, the price per round is comparable or cheaper than competing rounds when purchased in bulk quantities.

Throughout the United States, 300 Blackout can be found and purchased in store or online. This is especially true in areas where small to medium game hunting is popular. 

Regarding performance, 300 Blackout is commonly compared to 5.56 ammo and is generally considered to be the more adequate caliber (although this is also largely dependent more on the shooter's skill).

Additionally, 300 Blackout ammo offers low recoil and a high velocity that maintains performance at range - with or without a suppressor. 

From home defense to game hunting, 300 Blackout is utilized worldwide and can be used both in a suppressed platform and a loud platform.

One main area of consideration when using 300 AAC / 300 Blackout to hunt game is that it offers a limited range (Generally 200 yards for supersonic ammo and 150 yards or less for subsonic ammo.)

Popular Rifles that Shoot 300 Blackout Ammo?

Adams ArmsDiamondbackWilson CombatRuger
AARS P2DB15Protector Carbine 300

American Ranch

Protector Elite Carbine 300

Mini-14 Compact

Mini-14 Tactical


300 Blackout / 300 AAC Ammo FAQ

What are 300 Blackout rounds good for?

What is the advantage of 300 Blackout Ammo?

Is 300 Blackout Ammo good for hunting?

Can 300 Blackout Ammo go bad?

What is the difference between 300 Blackout and 300 AAC?

Can I buy 300 Blackout ammo in bulk?