The last time I spoke with Jess he said he wasn't going to bore anymore military barrels. Things may have changed since then.
There are lots of barrels available at a better price than a rebore if your wanting something common.
My last rebore was with Delta since Jess wouldn't do it. Something over a year I called to see how it was going and Jims wife told me he had passed away. My barrel was the last one he bored.
Mine was a 7x57 barrel that I bored to .338 with a 14" twist. I ran a 338-06 reamer in until it just cleaned up the 7x57 shoulder. I did a pound cast and cut a set of 338-06 dies off to fit the chamber. I call it a 34 Roberts. I don't know how fast it will push 200 gr cast but I run it around 2000 fps. Recoil starts becoming noticeable much above this. Ive killed 5 deer with it and it certainly packs a wallop.
I never had to touch the feed rails and it feeds like scum off a Louisiana swamp.