Other than using Burris Sig Zees or Optilocs lapping may minimise marking.
With the crappy CZ rings that came with my 527 I put 2 layers of gladwrap on the scope.
I have never removed the scope to check but what seemed like a good idea at the time I now doubt that gladwrap would provide much protection. I did however lap those rings and polished the edges of the tops and bottoms.
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