If you arenot using Burris inserted rings, do this:
1.Align your rings w/an alignment bar, to make the scope application stress free.
2. Liberally coat the inside of the rings w/elmers or any rubber cement.
3. Install the scope as usual. I know it looks like a real mess.
4. DONOT attempt to remove the glue that squeezed out, until its dried. It should be excessive.
5 With your fingers, peel of the glue thats showing. For the glue thats between the scope and action, take a small towell, run it under the scope, and work it back and forth like shinning your shoe, the glue will peel right out.
6 You should now have a scope w/no marks when you remove it.
BTW when you take the scope off, there will be lots of glue on the tube. Not to worry, it peels right off. Larry in western Ky.