Due to some trolls getting in a ****in match, my other thread got deleted, but the basic question is; what cartridge is the most versatile for north American game from deer to elk & moose to bear? The other thread whittled it down to 300wm or 7mm (and a few votes for 30-06). Just how versatile can each of these be (accurately)? Can a 300wm be throated to fire 130gr pills all the way up to 200+ and still have sub moa accuracy?
They're all great cartridges. All three will kill big game.
In my opinion, which I wish I had formed a long time ago, is as barometric pressure falls as we climb higher, there are less oxygen molecules in the atmosphere, which means an extra slice of roast beef on a sandwich is heavy. Breathing is not easy, especially when hiking ridges at altitude. Going with a Rocky Mountain altitude rifle, which means lighter, bigger cartridges will recoil more. That's why I'm doing everything from here on out with a .270 Win. I'll be hunting with one of my .270 Win rifles in two weeks in a Southern Utah deer unit.
A couple years ago I did a trophy elk rut hunt on National Forest land, I was carrying a 10 pound 7MM Rem Mag. My guide and I hunted a huge bull for about 2 & a half hours over I have no clue how many ridges. It was one of the most physically demanding sports I've done. I killed a 374 7x7 bull. The rub is I could have killed him just as dead with a much lighter .270 Win. After I killed that beast with one shot through its heart, I was just about as dead as he was.
Magnum cartridges in light rifles will kick the heck outta me when bench shooting. I've fired some big cartridges, enough to know that I don't like my brains scrambled.
Another excellent choice would be a .280 Rem. And I've read Tyson Leal's post. He has done quite well with his 6.5-284. If you hand load, that might be a perfect cartridge for you.
If you're not going to be carrying your rifle to tree lines, then a magnum cartridge might be the way to go.
Archery hunters kill HUGE bulls every year with arrows flying at ~300 FPS. It's all about shot placement, not magnum cartridges.
Measure twice, cut once.
I wish you the absolute best.