That IS interesting. Does the brake have a locknut?
Yes, the brake does have a lock nut. I have not shot my SFAR with the factory brake. I switched it out with a ASR brake/mount for my Hybrid-46. Actually have not shot that AR without the suppressor.
Now to add to the thickening plot...
I have a Ruger No. 1 that has a new threaded barrel. As a test, I mounted the brake from the SFAR to that rifle and shot it. The POI changed slightly, which was not surprising, however, the groups opened up a little. It would be interesting to play around with that, but since 6mm CM has very little recoil, I will simply leave the brake off.
