Quote Originally Posted by Dennis
I had a similiar issue and was advised to put my reading glasses on when focusing my scope. 150% difference! Now I allways shoot with reading glasses!

PS: I was seeing a double reticle and two dots on my target scopes without glasses! I thought it was a paralax adjustment. I would get my focus close using an eye chart @ 100yds. Still was not correct.

With reading glasses, adjusting, shooting, and everything focus related is perfect now!
I am pretty sure that a double image means you have some major astigmatism and you reading glasses probably clear that up more than your long vision lenses.