I have seen many Bulberry barrels on the range in practice and in match competition. They put out a good product and more importantly have always stood behind the product.
It sounds to me like a problem that really does not exist. Yep, mistakes, and yes aggrivating, but..... This is a wildcat round, it should be fire formed for the chamber and neck sized anyway. If the case body is slightly longer than every other 243 AI, who cares? You ain't going to be swapping ammo or buying the stuff off the shel in any case. That is why Fred appears to be trying the patience, if he re-does the entire barrel, you end up at the exact same place.
After the chamber is recut, just have your buddy reduce the load, and set the bullets out to engage if he has problems with headspace for fire forming. He can also wipe the case with case lube and fireform, he will be in good shape on the first firing.
Ed
Now if the twist will not work, well, Fred might have to get out his toad sticker anhd wrap it in rice paper.... adios Fred
