I've had two in 416 Rigby and 458. I kept the 416 for a buffalo hunt and like the gun. I wish they were still around and I had kept the 416.
Be Sure to glass the action! They were known to crack at the bolt notch and on into the wrist.
That is a smokin' buy!
But don't bed that gap right behind the tang - the stock will crack there if you do.
There is also an extra lug (and stock steel insert) at the underside of the rear sight base that should be bedded.
