I completed my project of restoring a 1944 Izhevsk ex-sniper. I put an original PU Scope on it and tapped the original mount holes since they lined up. Now that the scope is back on the weapon, I noticed that it is off center by about 2 feet to the right (view field) I was using my LBS kit and could not even see the dot. I lined up my center of mass using the barrel sights, and verified it with the scope, not even close. I also noticed that the scope itself is now mounted on an angle that bisects the barrel. To bring the scope back to center, do I file down the rear post where the locking screw is on the mount? Or is there a less damaging way? Maybe a longer front locking screw that is shimmed? Any suggested are welcomed.