Lap those zee rings with something like this- https://www.amazon.com/Wheeler-633-266-Scope-Alignment-Lapping/dp/B0052SXT8U

You could put a small amount of super glue on the scope where it touches the rings. I would imaging lapping them will do the trick tho. If you dont like the idea of glue, and lapping them dosent work, then put a dust coat of pine rosin on the inside of the rings.

Rosin- https://www.amazon.com/Lb-Powdered-Pine-Gum-Rosin/dp/B00LFPRS0O/ref=mp_s_a_1_3?ie=UTF8&qid=1533420178&sr=8-3&pi=AC_SX236_SY340_QL65&keywords=pine+rosin+powder&dpPl=1&dpID=4178VjsVOPL&ref=plSrch

Lapping instructions- https://youtu.be/fTIY9cZlpPs

Some guys use loctite (i use blue) and some just degrease and torque. Either way works if done right.

Good luck