Sightron 8-32x56 LRMOA

I used the stack up quarters method to obtain my minimum required height then shop for rings as different manufacturer has different height standard (don't just go by their low, medium or high as every make is different).

If it was me I will go lower if you are not going to swap scopes between rifles, if you have a cant rail (20 moa or more) measure it with the shade but that's depends on your barrel profile as well.

You should have more clearance towards the muzzle unless you have a bull barrel did not taper at all (LOL).

Forgot to add: I have about 4mm clearance without the lens cap and about 2mm with so that should give you an idea from the pic.
 
Thinking of buying a SIII 6X24X50 LRMD for my FNAR to come, that would be my third one, those are awsome scopes, not only for the price but for the great overall quality of those... JP.
 
Well I have a Rem 700. The barrel tapers from 30mm to 23.2mm leaving 6.8mm. My EGW base is 11.3mm tall. The rings I chose are 21.3mm from bottom to scope centre. So that's 39.4mm, the bell is 65/2 = 32.5 from scope centre to outside edge. 39.4-32.5=6.9

Did I do this right?
 
I don't know where you got 39.4mm but here's how I do it: 65mm / 2 = 32.5mm add 3mm for lens cover = 35.5 (this is what you need to clear the barrel).

Your base is 11.3mm and ring height from scope center to bottom of the rings is 21.3mm, so your total height (rings + base) = 11.3mm + 21.3mm equals to 32.6mm but you need 35.5mm clear the barrel so you are still short of -2.9mm.

However, these measurements are obtained from the top of the action and you barrel should tapers from the chamber to the muzzle and that should make up the difference of 3mm.

Do you have the rifle and scope with you?

The easiest way to do is put your rifle in a cleaning vise stack up some quarters put the scope on top after you satisfied with the height you want measure the thickness of the quarters and minus the height of the rail and you've got the measurements on how tall a set of rings you need.

Copy and paste this link here:

http://snipersparadise.com/bits-o-wisdom/basics/81-easy-accurate-scope-height-measurment
 
The barrel tapers 6.8mm, so I should be good. I don't have the scope yet or the quarter stacking would be easier for sure.
Thanks for all the help, I keep learning firearms is more then just shooting lol

Spcamno said:
I don't know where you got 39.4mm but here's how I do it: 65mm / 2 = 32.5mm add 3mm for lens cover = 35.5 (this is what you need to clear the barrel).

Your base is 11.3mm and ring height from scope center to bottom of the rings is 21.3mm, so your total height (rings + base) = 11.3mm + 21.3mm equals to 32.6mm but you need 35.5mm clear the barrel so you are still short of -2.9mm.

However, these measurements are obtained from the top of the action and you barrel should tapers from the chamber to the muzzle and that should make up the difference of 3mm.

Do you have the rifle and scope with you?

The easiest way to do is put your rifle in a cleaning vise stack up some quarters put the scope on top after you satisfied with the height you want measure the thickness of the quarters and minus the height of the rail and you've got the measurements on how tall a set of rings you need.

Copy and paste this link here:

http://snipersparadise.com/bits-o-wisdom/basics/81-easy-accurate-scope-height-measurment
Click to expand...
 
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