I'm seeing that the face of the Tikka action has a little bevel or chamfer around the circumference. Because of that, you can't spin on a 1.200" barrel without a little trench forming there at the junction. I'm seeing that some people have their receiver faces turned down to eliminate that bevel. My questions are 1. To get it completely flat, do any of the threads start getting removed when facing that receiver? 2. For those of you that have had theirs faced, what are the max barrel outside diameters that you can run now?