Another way to look at it is to question the logic of the long Remington .416.

A round that can be chambered in standard-length actions AND produce .416 Rigby performance appears to me to be far more desireable {and logical} than a round that requires long actions or modified standard-length actions to do the exact same thing {or even a little better}.

Having said that, Remington had the long action to work with and as in the case of the 8mm Remington, chose to use a case that made use of the whole thing. Naturally they don't care about the custom market.

I once owned a Remington 700 and while I'll admit it is a very strong action, I did not like it one bit. The brazed-on bolt handle, tiny dirt-magnet extractor, stamped and fabricated trigger assembly just did not appeal to me at all. The 700's are accurate guns in-general and have served our military for years so accusations that they are flimsy have over the years been pretty well debunked. I guess it is a personal preference issue for me in that there is just something about a Remington 700 that reeks of manufacturing methods and materials more desireable in the production of toaster ovens and dishwashers than shootin' irons.