Best for what??

For all round shooting on all continents for all game I think the 416 Rigby is without peer--

Lower pressure satisfactory ballistics.Excellent killing bullet characteristics-

Disadvantages-large action size,length,and weight-

Best for daily prolonged carry and game effectiveness?? Anything the 404 can do the 416 Rem can do better and the 416 Rem can be made lighter and more compact than a Rigby-

Best shootability??
I'll take the 404 if I am going to bang away with lotsa ammo for extended sessions.Lightweight 416's can bite.At least mine does.

Overall the 416 Rem unless doing Safari in the African 4+ heat --