I have made one more tweak to the rifle. I never liked the muzzle crown with the thread protector, so I re-cut it. It is hard to see what it looked like before from the attached picture. The top picture is how it came from the factory after removing the muzzle brake and installing the thread protector. The bottom shows the crown re-cut at 11 degrees with the thread protector. The thread protector participated in the cut also. It has blue thread lock, so it should not move.
I went to the range to test it out, but to my disappointment, the pet loads of 57 grains of H4831 Berger VLD Hunting 168 gr were not shooting well. The groups were in the 1.5" to 1.8" range. When I worked up the loads, the temperature was 40 degrees, now it is 85 degrees. Also, this load seemed to open up at 57.7 grains. Therefore, I suspected I could be having temperature stability effects. I backed off the load to 56 grains, went to the range again and the first two groups were 0.4" as shown below. The next two groups with 56.5 grains were acceptable, but a little more open at 0.7" and 0.9".
I think I will stick with the 56grain loads and NEVER tweak the gun again.
This thing is light, and a little tough to hold steady, but it is a shooter.