I believe all Renegades were I", regardless of caliber. The Hawken was 15/16 for 50 caliber and smaller and 1" for 54 and larger.
I put a GM 15/16 in a Renegade stock, I had to file the tang, down, on the top three flats to blend in with the barrel flats, the piece that the barrel wedge goes through, had to be shimmed down,(GM's are screwed on), and I shimmed the barrel channel, leaving a 1/32 gap on each side of the barrel. My original intentions was to glass bed the barrel, but it shots so good, I'm afraid to mess with it.