Although I have Sako and Warne ring-base sets for my two Sako 75 rifles, I use neither. Leupold makes much nicer mounts. They are trim and elegant in appearance, much more so than the Sako mounts. The Sako mounts are much (MUCH) too high. Both the Sako and Warne mounts have a positive stop to prevent the mounts from moving forward in recoil. On the Sako mounts the stop is on the rear base, and is unobtrusive. The Warne has a stop in the front mount, and overhands the bolt opening (it looks awful). The Leupold mounts do not have such a provision, and in my experience it is not needed. I torque the attachment screw to 40 inch-pounds. Mine have never migrated.