The question is, can you fully chamber a 300 blackout in to a .223 weapon? Well, the answer may surprise you, or even scare you. To help label your magazines, use these, https://magbands.net/
This was an archived video from a podcast. You may need to turn up your volume a little bit.
After you watch this video, be sure to check out the Full30 forum at https://forum.full30.com/?u=tactical_reviews it's filled with great people willing to help..
This is one of our older and believed lost videos from when ScrewTube deleted our channel.