Measuring Scope Height

1

Do you measure the scope height from the Objective or eyepiece end of a scope on a 20 MOA mount to center of bolt?

Thanks folks.

2

James goes over measuring scope height

Barbourcreek Long Range Shooting & Hunting School

Watch this video. Makes it pretty simple and clear.

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3

Thanks, I looked at his videos. He makes no mention as to the 20 MOA rings / pictinny. Maybe it is the engineer in me thinking there is a difference in height.

4

Measuring from center of the back of the bolt to the scope and the front of the bolt to the scope there is a 0.0115" difference. I guess I ain’t good enough of a shot for it to make a difference. Difference in scope height is 0.071" Yup, eyeball error is more.

Thanks, for the help.

5

I would think that all of the rigs his group uses to train shooters, have probably 20 MOA rails. The fact that he doesn’t mention it as a factor in going through the process, probably implies the difference is not significant enough to matter…but.
Google that question and see what comes up, but I have never heard of it as a consideration in mounting a scope, or even mentioned. I would think that the center of the bore is the goal to measure from and the bolt dimensions just give a start point. Put a clean rod through the action and reference off of that?
good luck

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6

Yes I have been searching or the situation. I figure here is folks with the desire to shoot straight and might have questioned it before. I can see the difference, as noted in my prior post, is minimal. Just trying to get all the human error I can out of my weapon system since I have a lot of error.
Thanks

7

You are making this way to hard. Center of the scope (Where the crosshairs meet) to the center of the bore. Depending on the scope rings and mount I have rifles that are 1.75 to 2.5".

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