Just an idea but I sent off a .308 that I wasn’t using to JES and he rebored it to a .338federal for me and it is a lightweight tack driver! His work is very cheap and exceptional. Lots of people on 24campfire talk about his work. He can convert all .308 derivatives into a .338federal so if you have a .243, .260, .7-08, or .308 laying around, he can hook you up. Just an idea. Good luck.