The .300 AAC Blackout, commonly known as the .300 Blackout, is a relatively new cartridge with an interesting history. Here's a brief overview:

1. Development: The .300 AAC Blackout Brass was developed by Advanced Armament Corporation (AAC), a subsidiary of Remington Outdoor Company, in collaboration with the U.S. military. It was introduced in 2011 as a response to the need for a cartridge that could provide better performance in suppressed firearms and short-barreled rifles (SBRs) than the standard 5.56x45mm NATO round.

2. Purpose: The primary goal of the .300 Blackout was to offer compatibility with existing AR-15 platform firearms while providing improved ballistics, particularly when using suppressed firearms. It was designed to deliver similar ballistic performance to the Soviet 7.62x39mm cartridge used in the AK-47 platform.

3. Cartridge Specifications: The .300 AAC Blackout round is derived from the .223 Remington case, but it has a larger caliber projectile. The cartridge typically uses .308 caliber bullets, allowing for greater mass and energy retention at shorter ranges compared to the 5.56x45mm NATO round.

4. Military Adoption: While the .300 Blackout was primarily developed for civilian and law enforcement markets, it has also seen some limited adoption by military units, particularly for special operations forces. Its ability to be used in standard AR-15 platforms with minimal modifications and its effectiveness in short-barreled rifles and suppressed firearms make it attractive for certain military applications.

5. Civilian Use: The .300 Blackout has gained popularity among civilian shooters for various purposes, including hunting, target shooting, and home defense. Its versatility, compatibility with the AR-15 platform, and availability of ammunition and firearms chambered for it contribute to its appeal.

6. Subsonic and Supersonic Loads: One of the notable features of the .300 Blackout is its ability to use both subsonic and supersonic ammunition interchangeably. Subsonic loads, typically used in conjunction with suppressors, offer quiet operation with minimal noise, while supersonic loads provide higher velocity and energy for longer-range shooting.

7. Continued Development: Since its introduction, the .300 Blackout cartridge has continued to evolve, with ammunition manufacturers producing a wide variety of loads optimized for different purposes, including hunting, target shooting, and self-defense.

Overall, the .300 AAC Blackout round's history is characterized by its innovative design, versatility, and adaptability to a wide range of firearms and shooting applications, making it a popular choice among shooters seeking enhanced performance in the AR-15 platform. Purchase high quality 300 AAC blackout brass from Kluster Reloading Supply!