I have myself a new 85 (greywolf) in the heavy recoiling 375H&H and my 4.5X40 VX3 is moving in my (ready to strip) stainless optilocks..........I'm sure the much sought after Warnes and one piece ringmounts are rarer and harder to get than ever, so are there any new developments.....it is bazzar that this is even a problem.
At this point my only real problem is the stainless screw heads....of course they are absolutely a one of a kind size.
I would go with matte rings but they only come in Med height.
Has Sako been using the same size ring screws for ever (thinking about scrounging up some old screws)