This goes round and round and will not be resolved until there is a SPECIFIC law, at the moment the Home Office issues guidelines and the police interpret them the way they want.
Now...to really stir it up...I don't rate the HMR very good at all for fox, my .22LR with a 40g HP Subs is a much better and a brilliant fox stopper, good penetration, massive expansion, big hole, usually delivers most of its energy (bullet stays in) dead fox.....
....for longer range the .22WMR and for even longer range the centrefires....
.....and interestingly, after many years of saying the .308 was ov