I wonder how a person can know a lack of ring alignment issues without checking.
Unless a person has never had a scope problem of any kind,how can you know
ring misalignment was not the root cause?
"I've mounted "X" number of scopes for "Y" number of years,no problem....
Have you ever had a scope that had adjustments that did not repeat,or were erratic? You know,you chased zero around the target for 30 rounds?
Have you ever had a reticle fail?
Do scope manufacturers use superglue?
Take a tube and cut two holes through it for turrets and glue a sleeve over the outside.
Put the tube in two rings misaligned .003,will you notice as you torque 8 screws up to two white knuckles?
Will the tube flex in a smooth arc,or might the turrets focus the flex at the erector,reticle,and adjustments?.
I would not be so sure it never caused problems.
If you tend to lap your rings,and you notice 9 out of 10 times you neatly clean the blue off the Inside surface of the rings with your initial strokes,well,by golly,I'd say you have good reason to be confident.
But if you have never lapped or at least used an alignment mandrel to check...how do you know what your alignment is?
I wonder if the same approach is ok for " I just build AR's by screwing in the barrel and throwing in a BCG . I don't use headspace gauges...been doing it 50 years,no problems so far.."
I have lapping bars,and I get some cut fairly often.Its not necessarily in the rings or mounts.
There is a reason Nesika Bay wire EDM's their receivers out of pre-hard steel.
Its the same reason some folks grind vee-flats on the outside of Rem 700 receivers for bedding. Warp in heat treat.. Perfect rings and bases can be mounted on a receiver that is not straight.
True,I have confidence in quality one piece ring/mounts for rails,
But,for example,two piece bolt rifle bases..better check.