Steve,

This made be of some help. This is a thread I started on AR for a friend of mine on the exact topic that you are talking about.

http://forums.accuratereloading.com/eve/ubb.x?a=tpc&s=518103&f=9411043&m=354102261&r=354102261#354102261

Winchester supposedy made 5 416 Rigbys and it now represents no more than a website entry.

Unless things have changed you will find contacting Winchester Australia about the various Model 70 customs will leave you with the impresson that they have a massive lack of interest.

Your best bet might be to bring in a Dakota action for 416 Rigby and have it made here. Dakota is getting a terrible reputation for their upgraded wood option giving wood that is about the quality of a fruit box.

If I was not caught up with Weatherby I think I would look at getting a Granite Mountain Arms magnum mauser action out here. You can also get then as a barreled action.

An American who I have a lot of communication with has a 450 Dakota, not the factory rifle, and he has a few D'Arcy Echols rilfes. He is looking to Echols to a wood rifle in 460 Wby but using the Granite or Hartman and Weiss action and not his Dakota action.

There is a poster on AccurateReloading who had the lower priced M70 custom in 458 Lott, the one that is now listed for $3030. He had his a couple of years ago.

Problems were: The bolt hiit the stock when it was pulled fully back. The sights were on crooked. The weld on the barrel recoil lug cracked.

Eventually Winchester fixed everything but that would be real fun doing from Australia.

Mike