Hello mate, I have a beretta 303 semi and a browning fusion gold semi which are ideal for foxing but you would need around £500/£600 for either second hand. I use the 1/2 choke for the simple reason it is a good all rounder, i.e. foxy could be bolting from a terrier 15/20 yards away from me or he could be 30/40 yards away fleeing from hounds. As for cartridges, you need to move up to at least 36grm loads of say BBs.Good Luck, hope this helps.
thanks mate whats the max range i could be looking at with a shotgun
Tom