I agree with bigmaxx 100%. My CZ 550 in 458WM went to Northern Ontario on a moose hunt in October. It was carried 5 full days through bogs, alder-choked low lands, over clearcuts riddled with deep water-filled holes made by skidders, over steep ridges with no sidewalks, etc. No moose, but I found I could hold steady on objects like trees and rocks out to 300 yds and beyond without a rest, after pushing myself in that terrain. That was due to the rifles weight and my own fitness. I'd have had no problem holding steady on a moose out to at least 300yds from the offhand stance.

The rifle itself weighs 9.3lbs. With a Burris Short Mag fixed 4X in Warne QD mounts, sling and 4 cartridges it comes in at an even 10.5lbs. The load was 350gr TSX's moving out at just over 2700 fps. One day I carried it with 6 rounds and never noticed any difference in weight.

I also had my 8.6lb 300WM along as a backup, and it never was taken out of its case.

BTW, I'm not in my 30's or 40's. I'm 70+ ! Granted, I'm in better shape than most 70 year-olds, or probably most 60 year-olds and even some 50 year-olds. I know that because I work with such people and hunt with guys in their 40's and 50's! The point of this is not to boast but to point out that 20 years ago I was badly overweight by 35lbs and found I had diabetes! Today, I'm much healthier than then and I'd rather carry 2 extra pounds of rifle any day over 35 lbs of excess blubber!