Zak Smith
Member
Probably has something to do with 15-30 mph winds making LR hits hard.
You could try carrying over your shoulder, butt to the rear, muzzle forward. The point of balance goes on your shoulder and a light grip goes around the forward part of the barrels to keep the rifle under control. I think this was actually called "african carry". Some padding on your shoulder prevents the rifle from rubbing.
As your trip is in the future yet, perhaps you should have a daily routine, or every other day of "exercize" to firm yourself and adjust before hand.
Now the rounds for that piece must be considered too. How much do they weigh, and how many are you going to "hump?"