I love the .257 Wby mag used it for many, many years, in an MkV rifle(s), I've always thought the .264 Win mag was just as great, but when I was using the .257 Wby 6.5 bullets just didn't have much in selection, nowadays, well I'd have to give the 6.5 Wim mag a second look and then like many have said there's the 6.5 Wby which in conversation with the Weatherby people I had many conversations about why not a 6.5mm now days who knows, just pick one.