If you want a calibre for shooting heavy mountain game how does a .300 (anything) magnum sound ? Is that the answer you are looking for ?

I thought I answered the original query about 3 rifles for everything on the plant. Those are the three I would choose. They won't do everything perfectly. I would submit nothing will do everything perfectly. My choice is a compromise I would be prepared to make. I have never hunted mountain game and probably never will. The nearest 'mountain' to me is over 120km away.

I do think the question of which calibre for shooting heavy mountain game is an interesting one. I would like to hear what others with far more experience in 'vertical' hunting would suggest.

Perhaps a different Topic would be in order.