Another dumb question. Do all re-bores end up with cut or button rifling? If done correctly is there any reason they would not be as good as a factory barrel, like the factory barrel on a Mirkoru made Mod. 71 .348 Win.?
JES is cut rifling but I don’t know about the rest. I haven’t read about any accuracy problems after a rebore by them.
Instead of a 300 BO, have you considered a 350 legend? Jes could likely do that.
No, never even thought about it because my can is 7.62 or smaller.