Actually JorgeI I feel that the important part of what you're asking is the "you define".
Point being, what makes these rounds better is largely an individual thing and isn't a one size fits all. Personally for me of the big 30's the one that's more better (4 me) is the WSM cause I can build it in a lightish package. Yet it's still has just enough weight to it so I can shoot it a ton and feel on top of my game with it and yet it's light enough for this mid life fella (53) to carry on the hunts that are toughest for me.
Just a thunk or two
Dober
That is a very, very well-reasoned personal definition of defining "better" and if I were looking to go the light package route that would certainly be my choice. Bob also makes a good argument regarding the 300 Win Mag in that if most are made on long actions, why bother and not just get an H&H or a Weatherby unless of course, operating costs is an issue. I think the best of the WSM family is the 270 as it does give you a substantial edge over the 270 whereas the 300 WSM does not over the bigger 300s.
I can get 3250 out of my Weatherby and 180gr bullets with about 80 grs of RL 22powder as I stated, with the 300 Win Mag 76gr H4831 gives me about 3100 and the H&H gets me to just over 3K with 71gr of RL22. I have no idea what the RUM gets as I have a phobia with anything with the name "Remington" on it
but the increase over the 300 Weatherby yet with even more powder.
One can also define "better" as case life, recoil and of course "killing power" and the last I really don't think anybody can really define that. I will tell you that in my view the difference in killing efficacy betwixt them and the 06 is significant and I don't care what the 06' cultists say!
. And again I'll say that from a practicality POV, the Win Mag and WSM are the logical choices.
