OT, are you trying to say that cleaning rod wear is not repeatable and not observable? Not really following the wind analogy.
I'll summarize my questions into a single one.
Why is pushing a proper sized coated cleaning rod without a bore guide bad, while a copper jacketed bullet, fired at several thousand feet per second with 50,000+ psi okay for the bore? Not to mention the wear the brass would have just from being chambered.
