So anyone with a 300 AAC or thinking about building one be very careful shooting Gunn subsonic ammo out of it, make sure you know for certain that the bullet did exit the barrel before you pull the trigger on that next round.

It did chamber the next round and had I pulled the trigger again things could have turned out a lot worse. So my day at the range was over for the 300 AAC.

So I pulled the rear pin removed the bolt and yep no daylight in barrel just as I thought the bullet didn't make it out the muzzle. While other firearms like bolt action rifles and single-shot guns can be used with it, the 300 BLK was primarily developed for tactical applications like using subsonic rounds for stealth or close-quarters battle (CQB) situations. So I made sure that I was seeing the bullets impact the berm and on about the 8th or 9th round things went south no visual bullet impact and a lot of gas coming out the chamber. The shorter barrel and subsonic loads mean 300 BLK is better suited for close to medium-range use cases. We compare performance of the 125 grain sierra matc. Then I decided to try some Gunn 220GR subsonic ammo and I noticed right off that it seemed very week, the report the recoil and very inconsistent. In this video we take a look at the long range capabilities of 300 blackout from a 9' short barrel rifle. 300 Blackout Come From Ballistically almost identical to 7.62x39 or. I was mainly shooting different supersonic ammo to find what groups best, and it was functioning perfectly. What is it Where did it come from Is it right for you We have the answers to that and a lot more Where Did. I just wanted to share my experience I had this weekend with my new 300 AAC BLACKOUT 16' shooting it non suppressed.

Shooting subsonic 300 blackout