Acquaintance recently found a Ruger RSM in 375HH and asked me if he could rechamber to 378 Weatherby and if the action would take that strong of a cartridge. My answer was that did not doubt the action being strong enough, but not sure about bolt face, feeding, magazine issues. Has this been done before??

it can be RECHAMBERED to 378 webby ... order a 416 rigby magbox and follower, open the bolt face, and do whatever to get it feeding ... did i mention get the magbox and follower?

it can be REBORED to 416, 458, 475, or even 510

jeffe