I've not stated my preference, which would be for a 416 Taylor as Schamankungulo stated & Will so obligingly illustrated for exactly the reasons given. I've had a 416 Rigby on a ZKK602 action & felt it was "enough gun", if Naren fells the need for more a 416 Rigby is a more practical alternative to a 416 Wby, it is possible to load the Rigby to Wby pressures & velocity or all but, after all, what is the Wby case but a slightly improved belted Rigby case, my first Rigby cases were 378 Wby cases with the belt turned off & run thru a custom Peter Davenport full length die with a tapered expander. Although I've not compared them, I'd wager the Rigby cases will feed smoother than the Wby cases or with less work & I seriously doubt that Wby brass is any easier to get than Rigby brass nowadays, at least in my neck of the woods, still whatever floats yer kilt STS

Its all part of what makes it so much fun & I'm the first to admit I'm probably scared to pull the trigger on full house Wby loads.

Will, seeing as Norma so under load their PH rounds or so it seems, what would you consider a reasonable aim for the 450gr Woodleigh in a 416 Rem & is the Double Tap ammo loading of the same bullet in 416 Taylor at 2250fps likely to be realistic or a bit OTT?
Steve