Each caliber has a place. Each caliber was designed by someone who said "if I do this for my situation, I think it will be better."
I'm with you part way, but not
in the above quoted. Firstly, because gun manufacturers make new calibers because gun nuts will buy them...not because they've necessarily "solved" any new piece of the ballistic puzzle.
Second, I think many, MANY calibers absolutely have not solved anything new, and essentially offer only solutions to problems almost nobody is going to have. Like, "Boy, I can get out to 900 yards pushing 2,000 ft/lbs...but what I REALLY need is to be able to do that @ 1100 yards.
This is nonsense. The only people on Earth who need that are military snipers. Period. End of story. No hunter needs this, even if the shot presented itself, because these are not ethical hunting distances
. Even if you've got the gun, and you have the practice time in and the skill to be able to credibly make that one shot as a hunter...who on Earth would find it advisable to do so, given the degree to which wind, animal movement, mirage, etc., come to bear on yanking the shot? It isn't even hunting...it's long range target practice using majestic creatures as sillouette targets, just for "giggles."
So...getting back to my above point on calibers, right off the bat I'm asserting that probably half of the "new" zippy calibers are essentially re-creating the .30-06 in some aspect. Do they offer better ballistics? Sure...at non-hunting distances. Oh, and with a far greater increase in recoil than in ballistic improvement.
Give me a .30-06 loaded with 180 gr Trophy Bonded Tipped Claws any day over a .300 Win Mag, and the elk will never know the difference. Only your shoulder will. That Mag sure does shine out at 850 yards...but since I am NOT
Carlos Hathcock, that does NOT
matter for any reason other than beer-swilling bragging rights.
Same goes for anything "Win Mag," "WSM," "SAUM," or "RUM" vs their non-magnum equivalents. If someone likes these and buys them, then good for you and God Bless America that you have the choice to do so. I like many, I would fight and die to be sure you have that right of choice. But don't be deluded into thinking you have a burning NEED for your .340 Weatherby that wasn't otherwise being addressed, unless you're hunting Taliban-sympathizing, Kevlar-clad doll sheep in the canyons of Wyoming...in which case, go with God, my son.
Such are the gun equivalents of Ferrari's, Lamborghini's, and the like. They sound sexy when you say their name, but they cost an arm and a leg to load, and the truth is you know
damn well the guy in the $45k Corvette ZR1 can run right with you for 1/5 the cost.