Bugger,
What was the author's definition of a clean barrel? Cleaned between each shot?
I believe it was an article in American Rifleman. It was only several years back. Last time our cousins got together for a Prairie Dog hunt I brought the subject up. That was three years ago. Sadly this hunt used to be annual. But we're doing again in two weeks. 😊
As I recall the author was a clean fanatic, cleaning after every ten rounds or so. If I recall correctly at least some of but not all was in regards to Ar-15's, M1's and the like. But he also covered bolt action rifles. He may have even brought up bench rifles.
It's not that I'm not a cleanliness freak, it's that I have other things to do. And oh yes, to have complete disclosure both my wives (past and present) think/thought that I'm a slob. But they obviously have/had judgement issues.
The article was news to me and I've not seen another, pro or con.