There is a procedure some gunsmiths use that I have used for many years and never had a problem with.
I put the rings on the mounts shoved forward [because that's what recoil will do] after they are on and tight the I put the scope in the rings and fasten it down, when I take it off the gun I clean the mounts when I put it back on the gun I shove it all the way forward before I tighten it down. Lee