Scope for K98
Try B Square non gunsmithing scope rail. Remove the rear sight and leaf spring by driving out the hinge pin with a brass drift. Installation is easy, just read the instructions. Scope choices imo are limited. I mounted a cheapo NcStar pistol scope to the mount and it couldn't withstand the recoil of the 30.06. I have a 1950 Columbian mauser K98. Get a good pistol scope for your 8mm. The mount is great. Good solid base for optics.
Springfield 1911: Like American express, Don't leave home without it.