Hi OBG,
I see a lot of moose, deer and black bear killed with different versions of the Lee-Enfield .303 British rifle every year in Northern Ontario. Mostly Mark 1's and 4's but the odd Jungle Carbine, usually in traditional deer camps in wooded/brushy country.
It is a very effective round at reasonable range; being an ex-service cartridge here I would guess it is as common to us as your 30-06 Springfield in the States.
Mike