Sorry, I made a mistake the Burris Signature rings are Medium height.
and are Burris part # 420521 in matte black.

I grabed the wrong empty package from my kit box.
I have both height rings but I installed the lowest set first to test fit me to the rifle and I am happy with the ring hight.
My choice of the "weaver mount system" as opposed to a quicker quick release system was the fact I can't use the iron sights. My fat face and the high comb of the M70 stock means I can't get the front sight bead into the groove of the of the rear blade. The closest I can do is have the about half the front post sticking above the groove of the rear sight blade.
But I like the looks of the iron sight on the gun, so I just left them on and
lazer bore sighted them. Some day I might remove the iron sights for that clean barrel look.
But for now and because I am not sure how to remove the fron ramp ( I suspect there may be another hold down screw under the front sight blade).
I wish Winchester had put a lower comb stock on the rifle so the irons sights
could br used but I am sure their marketing research shows most people put a scope on this rifle (in 375 cal) I don't know why they would but this same high comb stock on the rifles chamber for 458win mag.