Scope Leveling datum plane

[Sundodger]

I have a savage 11 223 that I am trying to use the scope leveling system included in the Wheeler Engineering scope mounting kit and I have a question.

The bubble level you place on the rifle itself, do you put it on the rails that the bolt lugs ride on or the machined Surface above (in-between the receiver ring and receiver bridge)?

I only ask because they are not in the same plane (off by 1/8-1/16 of a bubble width).

My gut is to go with where the bolt lugs ride, but I figured someone else would know this for sure.


Here is the level I am using:

http://www.cabelas.com/product/Wheel...D0&Ntt=wheeler

Thanks!