The groove diameter of my Marlin 1895 is .4595, the last time I checked. I'd have to get the equipment to cast and size CBs to .462 to get acceptable accuracy. Since I hadn't planned on shooting it that much, and I've got my casting down to just a couple calibers, I had been hoping that I could buy off-the-shelf CBs. However, the largest I've been able to find are .460 diameter. They're better than the .458 normal CB diameter, but I'm sure the rifle should be capable of better than 3 MOA accuracy off the bench with a scope.
So, can the barrel be relined or is the barrel wall thickness insufficient, or is the modern 45-70 too powerful for a successful lining?
Thank you,
Richard