In your situation mate,if you are not bothered about deer,or certainly the larger species, I would go .22-250, out to 300 yards it is very much a point and shoot round,ammo is readily available,the choice of rifles is vast, and on foxes bullet placement is not so vital with a frangible 50grain bullet doing around 4000fps there is no such thing as overkill mate, dead is dead,the .17 hornet is a good little round, no doubt about it, the .17rem even better, but as an all round,stood the test of time, fox medicine rifle,the .22-250 which has the advantage of being small deer legal, is still very