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.