I have A bolts in 7 Mag and 270, BAR's in 270, 30/06, and two 7 Mags. You can dial in very, very tight groups.
Biggest mistake is that a guy would move the adjustment too much.
They also make what is called a CLR if you do not want the muzzle break.
All things considered and being I have one and never attempted to adjust, how much do you actually adjust it one way or the other? Just curious. I set it for a particular load on their "boss settings", it shot moa so I left it alone.
