Because I don't assume to know everything, and just like you argue my take on the situation. People fall into the trap of assuming what they like or shoot well is the best, the best is likely even one up from my favourite for the task, as the most experienced travelling hunters in this thread prefer .300 and up to .338 Winchester and .340 Weatherby for an accross the continent cartridge. If I stacked the poll to include only what I view as acceptable, would be a pretty boring debate, for instance I don't see the .270 as appropriate. I view it a lot like a truck for towing a heavy load, the .30-06 is a half ton. In a pinch it will tow most things, but you don't want to be towing your $40,000 hunt on it when things get steep. Most of the time it's perfect. If you can park and drive a 3/4 ton diesel as well as the half ton, and tow a lot, why bother with the half ton?
I don't know Ardent. There's a lot to be said for a half ton you're familiar with, have faith in, and just plain enjoy. Even on a high $$$ hunt. Case in point. And just to be clear, that's a 30-06 in the picture. And the lion was in-bound when the fun started

And no, the PH never fired a shot. And before anyone tries to pipe up and say that there's a .375 minimum on dangerous game in every African country, please ... Lion is a Class C animal in Zimbabwe, requiring a minimum muzzle energy of 3,150 ft-lbs and a minimum bullet diameter of 7mm. In the '06 with a stout handload, you're there. Shooting one of the factory "light magnum" type loads, you're more than there.
In the end, what a guy shoots generally has less of an outcome on the hunt than how he shoots ... and even more than that, how he chooses to hunt. If I personally chose to shoot game at ranges beyond what the 30-06 does well, then for sure, the 300 WM is a better choice. But what if I don't? What if hunting (for me, and with no offence to others) means savouring the experience of getting inside an animal's sensory range and stalking as close as possible? Shooting the same bullet, a 300 yard shot with a 30-06 and a 500 yard shot with a 300 WM effectively have a guy shooting the same cartridge in terms of energy on target. Honestly, I think this discussion is missing a really important dimension. I don't mean that as a criticism of this thread at all, quite the contrary. It just illustrates to me that an ideal cartridge doesn't come from just matching paper performance to various game animals, but also factoring in one's definition of "hunting".
It kinda makes me wonder what this discussion would look like if you had started it by asking what was the ideal bow, arrow and broadhead weight for North American hunting. Given the physical limits one quickly runs into in bowhunting, I think the point about hunting style and self-imposed limits would have arisen much sooner.
Interesting thread though, all the same
