Is there any difference in thickness between Burris and Leupold Basses? I am refering to the standard type base. Dovetail front, windage adjustable rear. Thanks for any help.

I don't believe there is. I've been buying Leupold bases and the Burris rings, reason being, leupold bases are cheaper, Burris rings are better IMHO, in the standard rings, that is. Jay