I hunted for years in Osprey's and Gregories. They hurt my shoulders after ~30 lbs in the pack. I may be tired at the end of the day with 40 lbs in a Kifaru, but I won't hurt the same way. There's a big difference with high end packs.
In your position I'd suggest playing catch and release on the classifieds here. You don't need to buy new, and you really only need to buy a frame that's got the right size belt and stays to test it with a heavy load. You can be in it for a decent investment, and make 90% back after shipping if you decide that style of hunting isn't for you.
In your position I'd suggest playing catch and release on the classifieds here. You don't need to buy new, and you really only need to buy a frame that's got the right size belt and stays to test it with a heavy load. You can be in it for a decent investment, and make 90% back after shipping if you decide that style of hunting isn't for you.