I'm not familiar with that mount
Rick, so I looked it up on the Dixie site
http://www.dixiegunworks.com/product_info.php?products_id=7612. After reading the description I would suspect the mount is at fault rather than the scope. We often discuss the merits of steel vs. aluminum mounts, and some guys don't trust aluminum mounts
that are screwed down to the barrel. I just don't see any way a mount that is held to the barrel magnetically and with straps can remain stable shot to shot.
With the scope mounted, is it totallyimpossible to move it with your hand?