Hey guys, I have been looking online for some information but not really finding a clear answer. I have an old Whitworth Mauser Action F-Class rifle in .30-06 that I would like to re-barrel to something a little more modern like .284, 300 PRC or 6.5. I don't want to replace the bolt so I'm trying to find what would work with my current setup. Any information would be great. Thanks!