Hi Greg.
The 458 is here at my local gun shop and I have played with it.
I got my E-Mail from W.L today so should get the "all clear" next week.

I got 100,400 grain Woodleigh PP's and 50 480 grain RN to kick things off.

I have done a deal with myself and said that if as a standard 458 it feeds it will stay as is.

If it doesn't feed it will become a 458 Lott,450 Ack or 450 Rigby.