Specifically two articles come to mind about the Ruger #1. In one article he claimed to have shimmed the forearm screw with a rubber washer and reduced group size by 1/2". In the other article, he claims to "have heard" that a neoprene washer would reduce group size.
The articles were in the same magazine but different issues a couple of years apart.
In that same pile of gun magazines, I found another conflict in his writings concerning reloads.
In one article, a DuPont powder was fabulous, beat all others hands down. In another article, almost a decade apart, that same powder was not as good as a Hogdon powder in the same rifle caliber. He always wrote of things in years past and it seemed to me they were apt to change as the years went on.
Those magazines were not mine but belonged to a friend's father. He brought them to me to read while I was convalescing from a bowel resection.
I wish I could quote them directly by issue and date but I can't.
If I'm not mistaken, that editor you are talking about also had a hot rod magazine. Peterson Publishing?