Re: Aligning Vertical Tracking
First I install my rail, than I install the bottom halves of the rings with the scope loosely on it to find where I want to mount it. Once I determine where I want it, I tighten the bottom rings (without the scope - just the bottom half to the rail.)
Then, I use at least two levels, I use Level-Level-Level from Wheeler. I sometimes will use three (well most often).
I place one level to keep an eye on the rifle. I try to find a place (usually the rail) to keep an eye on the level. Then, placing the scope on the bottom rings, I place another small level on top of the elevation turret. Then I place a long carpenter's level on the surface (table) where I have the rifle.
I place a plum a short distance and aim to try to get the vertical line as close to the line as possible.
now I place the top rings and keep looking at the vertical to the plum. It take me a while to get it right any movement and it's off.
Slowly I start to tie it down but only slightly, then I cross switch, keep looking at the levels, keep looking through the scope to the plum and keep adjusting. Normally it takes me a few times to have to loosen.
And keep doing this until it comes out as best I can.
(Then I take it to the gunsmith and have him install it again - jk).
(I think this is the same as indicated above, just I might be more wordy.