the 223 will kill a deer thats for sure so will a 220 swift 22 250 and so on and so on but you are now alowd to hunt deer with that gun or any other gun under 23 cal and i would have to agree with sako .
I was going to say... I thought .22 was not legal, but the Hunt Book indicates it is. Still, .22 is too light IMHO.
Deer, moose and bear hunters using firearms or bows must use:
A centre-fire rifle of any calibre.
Or: A shotgun with ball, slug or lead shot larger than size BB (including buckshot) or steel shot larger than size F.
Or: A bow having a draw weight of not less than 20 kilograms together with arrows that are fitted with broadheads no less than 20 millimetres in width.
Or: A muzzle-loading firearm.
• Once the deer or bear tag has been removed from the licence, it is unlawful to use:
A rimfire or centre-fire rifle of .23 calibre or greater.
Or: A shotgun with lead shot larger than size BB or steel shot larger than size F.