Depending upon whether your mounts were originally claw mounts, side mounts, leupold, or Redfield, they can be found or duplicated. I prefer the Redfield, but alter them for the 1903 rifle. You are probably aware that the flat for the rear base, slanted at an angle is LOWER than the front action ring (where it is inscribed for the caliber) as this is easily seen by placing the mounts there with tape temporarily. Some people make a shim to raise the height of the rear mount. I SAY...lower the front mount by radiusing the bottom--taking off just enough metal to level things out. But will the bolt handle clear if I do that, or will it be too low for the bolt to come all the way up, you ask. Glad you asked. The rear mount must be moved forward just enough for the bolt handle to raise BEHIND THE WINDAGE ADJUSTMENT SCREW. You may also have to slightly file the bottom of the area just behind the windage adjustment screw. Then all is hunky-dory. Hope I haven't confused the issue, and only you can decide if the adjustment of the rear mount (including possibly removing just enough metal at the front of the flat to move it forward) is worth the trouble or alteration of your gun. Mine were originally basket cases which I rescued with no concern for resale penalty for alteration. Just wanted you to know it could be done and how it could be done. Good luck, and keep that Mannlicher shooting!
PS There is a world of information also to be obtained from the Mannlicher Collectors Assoc. Steve
Last edited by steve white; 10/25/15 11:39 PM.