The second centerfile rifle I bought was a Ackley-built rifle, back in about 1975 or so. Ackley built them and sold them for several years, and I think in other chambers, though I never saw one in anything than .30-06. It was a nice rifle, and very accurate. I traded it off in the early 1990's, and haven't owned an '06 since then. Have owned a cartridge or two on others that are "related", but no .30-'06.
Dennis