Before we start the side-by-side contrast and comparison between rifle ballistics’ 300 Blackout and 5.56mm NATO, let’s first dive into each of its humble beginnings.

AAC’s take on the .30-cal

Despite being a new caliber, the .300 Blackout has quickly risen to prominence in the last 20 years. It’s been popularly used in Special Operations and other specialized military units due to its ability to suppress the round well with impressive ballistics. Hunters started using these, too, boosting their ability to sneak around their prey.

Advanced Armament Company (ACC) designed the .300 Blackout (300 BLK) in the late 2000s to meet the growing demand for ballistics that can offer less sound noise level. At the same time have more capable firepower and compatibility with the rifles such as M4s and AR-15s.

(Screenshot from Hoplopfheil/YouTube)

Its conception initially aimed to achieve similar ballistics to the 7.62x39mm, but with enhanced “stopping power” and can perform in a subsonic velocity using a short-barreled rifle.