Re: new scope doesnt line up with action
You're assuming that the mechanical zero is the same as the optical zero, and it may not be.
You found the mechanical zero by counting clicks from one limit to the other, and then setting the turret to half that value.
The optical zero can be found on a mounted scope by 1) placing a small mirror flat against the objective, 2) looking through the eyepiece, 3) rotating the turrets until the reticle and its reflected image lie on top of each other. I helps to let a little light creep into the objective (cover the objective only about 95% with the mirror). This process takes a little practice to do well.
If the reticle and the reflection are both visible, then instead of dialing the turret you can measure the angular separation between them using the reticle. Then divide that measured value by 2 to get the angular offset from optical zero. This way you don't have to rotate the turrets away from the zero you just established.
If the rings were separated by 4", then 1/8" of adjustment would correspond to 107 MOA of windage. I doubt that your Vortex scope has enough true windage adjustment to account for all the windage offset that you've dialed in on the base. It sounds to me like your barrel is not installed straight. Is this a production rifle? If so what model?