"You have obviously never hunted ( or know anything about ) Coues Whitetail in southern Arizona."
Actually, I do know about the Coues deer,,, AND how the Apache used to hunt them. No,, I've never had the opportunity to hunt them. But if I did,, I'd go after them with a handgun. I know the hunt would be hard,, and if I were to succeed,, it'd be a well earned trophy.
"I invite you to come with me to the Rockies where mountain hunting is at 11,000 feet and more"
Actually I have hunted elk in the Rockies a few times. And yes,, my first trip,, I took (2) rifles. A scoped 7mm mag and a Marlin .35 Remington with iron sights. We camped at 10,200 ft & hunted up from there. I took my first elk on that trip in 1996, using the .7mm Mag. Every elk hunt since,, has been with a handgun. PS; I'd love another elk hunt & your invite is interesting!
"Just what kind of guns do you guys use , where you need a back up for your back up ?"
I've never needed a back-up,, nor the back-up for my back-up. But once you plan for months, spend a lot of money, time & effort,, I feel the minor extra weight & space of a 3rd handgun is minimal insurance for me to use my gun(s) instead of borrowing one or doing without.
Just a few years ago,, I went on a trip to Colorado for elk. When we went to the range to check our guns,, I was the only handgun hunter in the group. A father/son duo who were very green in several ways,, saw me pull out a smaller case than their cases for their rifles. When I opened the case,, they saw (3) handguns. The father asked me; "Where's your rifle?" To which I replied; "I don't cheat!"
As they went to checking their rifles,, they were astonished with my grouping at 100 yds with a .45 Colt El Dorado, open sights. My groups were better than their groups with scoped rifles. But to be quite honest,, they were NOT good shots, (or hunters!)
I do NOT disagree that many people prefer scopes,, and that they can be very helpful for a lot of people. And I have them on many of my rifles as well. But I also agree that there have been hunters & iron/open sights in use a lot longer than optic sighted guns have been in general use.
It used to be the skill of a hunter was on how close they could get to the game AND place an ethical killing shot.
Nowadays,, there are people shooting game at 1/2 mile away & think that's sporting.