93Mouse,
Very interesting story. As it happens, I have a ZH204 (7x57R/12 ga) which I use like a double rifle. Brenneke slugs and 139 gr. handloads shoot to the same point out to 150 yards or so. I also have a BRNO 7x57R/7x57R double rifle. So far, I haven't been successful in getting the barrels to shoot to the same point of aim. I had decided to sell the rifle, but perhaps I should reconsider....

Anyway, your photos show a country that reminds me very much of my home area in Western North Carolina. Substitute white-tails for roe deer and you couldn't tell the difference.