Im not an advocate of the 300 RUM. sticking a lot of gas in the tank and for what? Your 3006 or 300 win mag can do the same job with less powder, me being the purest, I prefer the 300H&H sleek ###y and fast, as for a 416 well that's one hell of a wallop on both the shoulder and pocket book. Ardent is a huge fan of the 375H&H, for me the recoil on the 375 is brutal and have had the opportunity to have fired several dozen over the years. My experience with the 416 is limited to two doubles and a Churchill, the 375 had a bark, the 416 had a hell of a shove, so my heart is near and dear to the 404 Jeffy, the best of both worlds, more of a big shove than a snap or a push. Guess it all depends on what you want to do and on what critter enjoy and good shooting