RE: .223 ok 4 deer?
Ditto, more or less, every one that has already answered. The 223 Rem. round will kill deer. In some states it is not legal because it is under 25 cal. I would not use nor will I recommend using the 223 Rem. for deer (unless I were in survival mode) even if itwas legal. Start at the 6mm Rem. - 243 Win. as the minimum.