Ring Height Info - How to Measure Correctly

Sainte70

Private
Minuteman
Jun 19, 2018
67
13
12
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?
 

DJL2

Hurricane 6
Belligerents
Minuteman
Oct 16, 2013
118
56
34
Center of the Military Universe
How far in front the the front ring does the bell extend and what is the height differential between barrel and mount at that length? You can calculate the effective objective OD doing a little trig and, presumably, measure the latter. Pretty straight forward math, or you can just swag it - half a degree down angle isn’t going to make a huge difference unless you were extremely close to begin with.
 

barronian

Private
Minuteman
Jan 18, 2019
19
2
6
Hummmm…. my problem isn't calculating the clearance for the objective end of the scope …. its guessing the clearance needed for the bolt action(plus finger) on the CZ455. Can mount the scope low, looks great … just cant use the gun ;-(