didn't you get a .308 already?
CZ has got a bolt action in the ak47 round, can you get cheap ammo that way? (former Soviet republic and all that) not a 1km rifle perhaps but still.
the ruger from what I know isn't considered a long range gun
You got plenty of boars in driven hunts, maybe considerer a semi-auto (one of the ak-derivates like saiga, vepr etc etc) or a pump or lever action