Originally Posted by backcountryguide
If my impact is right after I dial up then wich way do I turn the scope tube?
Think about it, it's hitting right with dialing as your crosshair is dialing leftward(due to adjustment cant), and so you roll the gun rightward to get the crosshair on target.
Now you want the crosshair to adjust purely upward, so you turn the scope clockwise until it does.
This sounds like an example of elevation adjustment out of plumb, and rare as it might seem, I've seen it in both Leupold and Nightforce.
Bottom line, if you dial elevation, you should set adjustment plumb. If you're holding off with a crosshair, you should set the crosshair plumb. If you do both, you gotta set both.
There is only one level I recommend, because it's as good as any, inexpensive, it's a permanent level for a given scope, and it's the only level you can see straight on from shooting position -with your shooting eye: Scoplevel Anti Cant Leveling Device
I dial elevation, test every scope(on any rifle), and lock down a ScopLevel to it. From here on I can move the scope from gun to gun & never worry about level again(already preset).
Re-zeroing takes one single shot & dialing to the bullet hole printed. Zero the turret caps. Done.