Back when I was young, I carried four different rifles. The lightest was a Remington 700 in 300 Winchester Magnum at 8 lbs, and the others were heavier - around 10 lbs on my shoulder. I didn't find that to be much of a hindrance at the time, including twice hiking to above treeline with a 10 lb 300 Weatherby rifle..
You, my friend, are my hero. That's anywhere from 35 to 40 pounds of rifles. I'm too much of a wimp and only carry one rifle.
No schit.
One time when we were 18-20 a bud and I each packed a Browning BPS 10 gauge and a centerfire rifle of some sort calling.
We walked down into the creek bottoms about a mile from his house in 6-8" of snow. Once we made a few set ups and had to head back to the house we said never again.
We then decided one would have a shotgun and the other a rifle, no need for 4 guns. I can honestly say we stuck to that even when just hunting a couple hundred yards from the truck.
Too much like work lugging 20# of guns.