There used to be a lot of "Brno"/CZ combination rifles in .22 HP and 12 gauge with the rifle barrel on top, in the adverts of Aussie shooting mags back in the 1980's.

That is a lovely rifle. Would be perfect for roos, hog deer (ir legal), roe deer, feral goats and a lot of feral pigs. Fallow deer, chital as well. With a 70 gr .228 projectyile.