The scope-ring-base-receiver junctions are the greatest reasons for loss of zero IMO. Thorough Degreasing and Loc-tite are a priority all the way around and one can go even further with the bigger magnums by tapping the receiver for the bigger 8x40 screws and epoxying the bases and screws to the receiver.
In regard to fingernail polish, another way I use it (in a bright color) is to dab all the primers of my hunting loads with it, wiping off the excess with a cloth leaving a colored seal around the primer edges. It’s another barrier to moisture for cartridges dropped in the snow or even water and stuck back into a pocket or carrier.
Last edited by George_De_Vries_3rd; 05/20/18.
