I have used the optilocks on 2 Sako 85's and have no complaints. Not sure if I care for the plastic in the rings but it does not seem to affect accuracy IME.
As stated above Near Manufacturing makes a mount for the Sako 85. Richard Nears products are as well made as I have seen. If I was installing on a true long range rig I would go that route.
Good luck and shoot straight
Bob
