What would you put into the calculator for a Burris 25moa base on a Sendero barrel? That is the part that is a little more guesswork. Have a Steiner 4-16x56 the bell is 64.7mm. Have the choice of rings of 1 inch or 1.25. The 1 inch will be really close. Should probably get the 1.25? Whats a .3 gap.
Can you find 1.18” rings?