I've come into a bunch of .375 ultramag ammo and am wondering if it is possible to do this conversion? I know nothing of gunsmithing and have no clue what it takes, obviously i am looking for someone to do this also, any reccomendations. It would be done to a browning Abolt stainless stalker. Any idea of what this would cost?

Thanks

Yes it's doable but you will need the 300 RUM mag assembly. Price for the chamber work could be $150 or so.