I partly agree...
If I was in Africa, I would take multiple guns for specific animals. Cape Buffalo would be a 375 minimum. But, I would NOT want a bolt action against a Lion or Hyena if it ran at me full speed or ambushed me, I'd want lots of rounds off quickly with lots of shots on target and also a handgun for backup on a lanyard.
Why do so many in Alaska and the lower 48 prefer the 10mm over 44 mag, 454 Casull or 500 S&W? The theories don't add up. People want the very heavy rifle but favor smaller less powerful handguns. A S&W 500 revolver can anchor a Cape Buffalo with one shot as has been done with the 440gr hard cast. A lot of people complain that a 4" inch revolver in a chest holster is too heavy for them but want to carry a heavy bolt action rifle chambered in 300 WM, 338, 375, 416.
I still don't know how one can get off a second shot with a bolt action, pump shot gun or lever gun if caught off guard and a bear charges them and knocks them to the ground and their first shot is a miss. My whole point is what to do when the first shot is a miss and often as has been written about during bear attacks is the first shot is often a miss and the shooter is falling back onto the ground. That's what I'm concerned about is the high probability of a first shot miss and being on my back, so I want as quick a follow up shot as possible in semi-auto or double action revolver that does not require other movements and functions to get the 2nd shot off.
At the beginning of this thread I should have first mentioned about that "first shot miss" during a bear charge and the shooter falling back and shooting his foot. That's why my theory of a semi-auto rifle in 308 with 20+ rounds is something I want to look more into.
I also thought about motor skill function during high stress situations, when someone or something charges you, catches out off guard the sense of fear, horror and terror. You fall back either by losing your footing or the animal knocks you down and you either didn't get the first shot off or the first shot is a miss. Just walking around your house and a friend or family member scares you as a joke when they're hiding around the corner can make you jump, imagine a bear charge.