The safety issues were all related to mis-assembly of the bolt, as I recollect. I've seen various ross rifles rechambered to 284 Win, 458 Win Mag, and a couple of 303 based wildcats, used to be an old gent here in town that had a half dozen of them. He's passed on now, and all the guns were sold off about eight years ago, but it's certainly do-able. - dan