Handloader 52, The whole reason for the .416 Chatfield-Taylor coming into being, was it's ability to operate in a .30-06 length magazine/action. As Oz Hunter mentioned, now that the .416 Ruger is available, there really is no practical use for the .416 C-T.
Hope this helps
Doh! Homer
-------------------- "Beware the Lolly Pop of Mediocrity,
Lick it Once and You Will Suck Forever"