That could work. The receiver could be out of whack from heat treatment. The base could be out of whack. Have you shot it yet to see where it hits? I don't trust scopes, even though the new ones are hugely better than the ones from 50 years ago.
If nothing works and you don't want to send it back and deal with all that, take a look at the bottom of the page at the link
By using the Signature Pos-Align® Offset Insert Kit in their Signiture rings you can move the scope within the rings to get it centered. I've used them and they work.