Rifle Scopes HELP! Ran out of windage adjustment

[BDoyle3]

Hi all. Ran into a problem that I have no idea how to fix. Have a Nikon M-308 BDC scope on my Ruger GSR rifle. The base that the scope came with is apparently 20MOA. Upon bore sighting the gun I completely ran out of windage adjustment to align the the crosshairs. The elevation is fine however. Is this problem fixable ??

 

[Dogtown]

That's odd. Can you verify that your scope and the mount are setup properly and that there's no subtle lateral cant introduced?

 

[jdgray]

Wow, that is very odd...
What rings are you using? Something sounds off, and it should be noticeably canted. Is the scope a known good scope, or is it new?