FWIW I was browsing through the Cabela's gun library and they have a custom Whitworth Express in .378 Weatherby caliber. I only bring this up since there has been some discussion lately about doing a .416 Rigby on a standard 98 action. Since this is basically the same case length, size cartridge and the Whitworth is a 98 action, I thought some of you might want to look at this one.