For a starters what Leupold are you getting?.. Mk4, VX-7, VX-3L ect.
I have a set of Max 50 High for the 30 mil tube but will be changing that to the Max 50 Standard for the 30mil tube as I have a VX-3L 4.5-15x50 atop my rifle because the objective has the scallop/cut out allowing the scope to sit lower.
So as you can see there are an almost endless combination to choose from and all depending on what Objective you are getting, IE, the Standard or Scallop/cut out.
I have heard of good reports for the alloy rings from Badger and I may even get me a set of these in the future as well.