PS: I also use it with a shotgun and bird vest for that long walk back to your pickup.I have used a gun bearer for many years - since they came out. It has it plusses and minuses but overall I have not found anything better. As mentioned above that if you fall, chit can happen and none of it is good on the rifle. In really nasty stuff I'll switch my rifle to the side of my pack.
It is all personal preference but it didn't take me long to not like having the scope under my arm pit as Kifaru shows. I have the scope facing away from my body, this allows a much more straight up and down carry versus having the muzzle out in front of your face - but each to there own and whatever is more comfirtable for your use.