“How the heck did you deal with the overpressure??? Is rebarreling all that was needed?”
The Remington 700 action handles the pressure fine. I got a threaded and short chambered barrel from Brownells. So I needed a “Go Guage” and a finish chamber reamer, to complete the chambering. As well as a barrel vice and action wrench.
https://www.youtube.com/watch?v=Edqg3tJz9rQ
Nice!