My question comes from my experience with Ruger receiver rings. They have to be installed individually or they don’t mate right with the receiver.
Then I check them and they are crooked to each other by just a bit, using the pointed cylinders. Then I lap until the points are aligned. After all that, I still get some ring marks on my scope....urrgh!
So, I have to believe there is still some binding or I’m not lapping enough...