weatherby universal die

I received a 300 seater die with some other reload stuff that was given to me. My guess is there are different inserts that can be used for this die. Does anyone know much about this die? google search didn't turn up much.

I had heard that they once sold them, but have never seen a set. I know where you could ask, though.....

Here is the link to the Weatherby forum: http://www.weatherbynation.com/

thank you versifier, you are a wealth of knowledge.