I can speak from experence. I have 2 300wsm barrels one from BB the other from VV the one from BB is about to be returned for a credit of 30% of what it cost...this was by agreement . In the beginning I thought i MUST have one of these and ordered one from BB when I got it I tried every load of factory ammo made with terrable results. I let a friend who reloads work on it for months still nothing....sent it to 2 other people who tried different thing ( recrown, lenghten throat, etc.) IT will not shoot a group.
My barrel from VV has had loads worked up for it by them and it does better but I can say it is not a tack driver either. The most common thing with both is the "flyers" or lack of holding POI. I assume this is due to the "frame" problem.
I am talking flyers and POI change of 4-6 inches so its not a minor thing.
I know how it feels to have the "bug" for one of these but this is how it is.
I don't recommend it but as I said I am about to return one so if you feel you "have to have one" I will sell mine for what my credit is at BB.
I offer this only because I have no use or hope for it and refuse to sell it to someone without them knowing all the facts.
Just a offer I don't recommend you take it.
send me a email or private if you need more info