I was looking at the threads and shank dimensions of Ruger M77, Ruger No. 1, and Winchester Mdl. 70 rifle barrels. All these have 1" V-threads 14? TPI. The pre-64 and classic barrels and the Ruger No. 1s have longer shanks and are cut for extractors but the push feed M77s and M70s appear to be very close.
I have pre-64 Mdl. 70s, push feed M77s, and No. 1 barrels in my scrap pile but don't have a push feed M70 or a new CF M77 barrel. Does anyone have one one of these barrels laying around or have the dimensions of them? I'd like to look at the possibility of easily interchanging Mdl 70 push feed and M77 barrels and I'm curious how close a M77 controlled feed comes to the Winchester pre64/ classic barrels.