Didn't seat even on receiver - DNZ Products Hunt Masters Two Piece Mounts

I have a Montana 1999 action rifle which has always reliably used Winchester 70 scope rings. I also have a Winchester 70. The rings I received, when screwed to either receiver, were not even. If you place a level on the front ring and compare to a level on the rear ring, they aren't even. Never had this issue before. I had to level the receiver and found the front ring was very close and the rear ring was way off. Why? because the screws provided to not force center the rings. I had to place a 30mm lapping bar on the rings in order to keep them straight then a modified hex key to screw them down enough to where they'd stay. Then I removed the lapping bar, torqued them. Still the rear was not the same level as the front -- although close enough. The screws provided and the drilled holes for them should be designed such that they force center 2-piece rings. I got the scope level and mounted properly but not without extra, unnecessary work that I shouldn't have had to do.