I have mentioned this before about suitable calibres but it is time to take the task in hand.Anyway i use a .22 for vermin along with .17 Rem, the .22 is ok close in and the .17 is brill to about 200yds but it is getting expensive £15 for heads £50 for 100 cases then primers and powder+time i cover a lot of ground and so far this year i have shot in excese of 4000 bunnys anyway i want to use my .223 since i can get factoy ammo for £14/100 a big saveing,but my FLO says the .223 is for use on roe and fox and would be overkill on bunnys and his boss won,t allow it and the bunny would be blown to bits which the.17 does anyway.All the landowner and i want are dead bunnys, how do i stand