Thanks for all of that info.1. Centre your scope's windage reticle by determining the total number of clicks available from left to right and then halving.
2. Cradle scope in the bottom half of each non-windage adjustable ring after attaching them to the rifle's rail.
3. Place a hi-viz painted 6" circular disc atyards and bore sight rifle using a front & rear rest.
4. If windage reticle is touching or close to aiming mark you're probably good to go. If unhappy with reticle position, consider swapping position of front and rear rings, then bore sight again. You may wish to do this anyway, or any other combination of ring half interchange, simply to determine any difference.
K
Saw a great method for doing this the other day, small mirror placed on the objective lens, look through the scope and align the two images,You need to centre reticule first.
Are you talking about aligning the axis of one ring to the other or to the axis of the rings to the bore? The latter isn't as critical as the former, although, from a windage point of view especially, as close as possible is preferable.Does anybody check two piece scope rings for alignment/centering by reversing them next to each other on the pic rail. Is it a sign of quality engineering and does it even matter anyway, as long as they align when both the same way round ?

I don`t think I have explained it very well.Are you talking about aligning the axis of one ring to the other or to the axis of the rings to the bore? The latter isn't as critical as the former, although, from a windage point of view especially, as close as possible is preferable.
I lap rings to make their individual axes align, some can be very poorly aligned when fitted. Whether it is the rings, the clamps or the rail, if you lap the rings so they're concentric you'll not kink your tube.
Don't do it. It's not a sign of quality. Keep both rings same way around.Does anybody check two piece scope rings for alignment/centering by reversing them next to each other on the pic rail. Is it a sign of quality engineering and does it even matter anyway, as long as they align when both the same way round
No, I use a variety of Burris rings with plastic inserts. I use the inserts to optically centre the scopes to equalise the left/right adjustment. I also use the inserts to maximise the available elevation especially when shooting long range .22LR.Does anybody check two piece scope rings for alignment/centering by reversing them next to each other on the pic rail. Is it a sign of quality engineering and does it even matter anyway, as long as they align when both the same way round ?
Me tooNo, I use a variety of Burris rings with plastic inserts. I use the inserts to optically centre the scopes to equalise the left/right adjustment. I also use the inserts to maximise the available elevation especially when shooting long range .22LR.
Regards
JCS