I have just started a project to build a 416 Rigby for a up coming trip to Africa. I noticed that the dimensions, less the belt of the Wby, of the Wby and the Rigby are about the same. Then some one told me that the Wby was based on the Rigby case. I was wondering as the 416 Wby is based on the 416 Rigby (if it built on a sound modern action) is it possible to use data for the Wby in the Rigby. If so does anyone have any pet loads they would like to share.