I have a Vickers of London Mauser 98 sporter that was originally a 318 express but had been bored and rechambered to 35 Whelen. I decided to at least return it to its British origins and rechambered it to 350 Rimless Rigby Mag. It required opening the bolt face, adjusting the feed rails and just a little feed ramp clean up. The mag already had a curved extension added to the front from when it was originally made to fit the long .318 cartridge, with a little mill work I got the clearance needed for the 350. It worked out real well and now the rifle has been returned to its English roots. It is certainly a possibility in this case.