I had an older Browning BBR 300 win mag that had an exceedingly short detachable mag. The action is similar to a Weatherby with multiple lugs. The local gunsmith refused to do a rebarrel, said the action was not strong enough. Found a good gunsmith in the Salt Lake City area that said he would do it, but he had problems. Wound up calling it the "BBR from Elm Street". He said the barrel was in a sleeve in the action and had to be pinned. Had to make a special tool to get it just right.
But the rebarrel into a 6.5 rem mag turned out really well and shoots good. 140 gr bullets from 3000 to 3100 fps and 130 gr bullets from 3100 to 3200 fps
I like the shorter bolt lift and the tang safety. So they can be rebarreled into a good hunting gun but would not be the best for benchrest or target.