American Rifle Company is the only guy out there to totally re-think the way scope rings work, his stuff is top notch, every one of my scopes wears M10 rings, not a single ring mark or scuff on any of them.
Also to note, I was mounting a scope once, got distracted, and forgot to actually tighten the top clamp screw beyond just lightly finger tight. Went out and test fired and still fired a one hole group with it. Tightened them up when I realized it, went back out and zero did not change.
The clamping force of his rings are way above the standard design, and do not induce stress into the tube.