I love my Browning A Bolt .300 win mag with BOSS that I've killed many animals with. I am trying to find an A Bolt Stainless Stalker with B.O.S.S. in .270 like mine for my 12 year old son who is hunting now. Does anyone know where I can get one and also what versions are available with the BOSS? Seems like only the original A Bolt came with the BOSS in that caliber. Any help would be appreciated.