Yes, it does work exactly that way. Every rodeo I have been involved in has resulted from one thing - crappy shooting. If you want to argue about poor angle shots, offhand shots, running game shots, and other sillyness, go right ahead. Facts are facts - a hole through both lungs with a hunting bullet within its design parameters, and / or heart = dead animal, every time, no exceptions. Will an elk bleed out quicker with a .458 caliber hole vs a .264 hole all else being equal, yes. But, it will still bleed out.
The 6.5s will kill whatever you shoot well, and have for well over 100 years. A "magnum" is not a solution to poor shooting ability and limited hunting skill. Is my 8 mag a better elk gun then a 6.5 CM? Probably, but I would not hesitate for a single second to send a 140 gr pill into the biggest elk on the planet with one.
But hey, you do you brother.
Amen, and some who get to participate in many rodeos due to line of work, and who are paying attention, have noted that majority of those rodeos come from the magnums. So there's that. Most guys shooting them...compensating, just don't know any better.
Then add to that, guys come on here and say I've shot 22 elk etc. and have never tried anything but what the old timers told them to use, big ole magnums, 30's and 338's etc....and talk they know a 6.5 isn't adequate, lmfao. Ok.