Hah. Your slung rifle dredged a memory from that decrepit organ that used to be my brain. When I 'still-hunted' through the woods hoping to come upon something edible to kill, I sometimes carried my rifle slung muzzle down from my left shoulder. A quick, simple set of motions brought the rifle around and butted at my right shoulder, with the sling in position on the left arm. My friends were not impressed with this innovation, because it 'didn't look right'. Even pointing out that the muzzle down carry lessened the possibility of getting crap in the muzzle didn't sway them.Thanks guys. The holster is a cross draw. I find it more comfortable while on foot, in a vehicle or on horseback.
On top of that, if my rifle is slung then I don't clank the two together while going through the woods.