Savage factory chambered 257 roberts, @cabelas

I did not notice it in the ad, but when I went to look/buy a gun at Cabelas, the guy mentioned 257roberts but they were sold out. I bought a 270 and left only to look at my ad when I got home and 257rob was listed. I immediatly thought typo, but an internet search quickly led to someone who indeed bought one at cabelas recently. The gun is listed as a cabelas exclusive, could this be an exclusive chambering also, or is savage adding it. I have never ran across one or seen it listed in the savage website.