RE: 223 for deer?
Mossy, as a bow hunter, you should know that there is a big difference in the way a bullet kills, and how a broadhead kills! Any of the .22's are just too poor of a bullet for deer hunting! In the hands of a very well practiced hunter, and under ideal conditions, yes, the .22's will work! The second part of my last sentence is the real key!
"Ideal!"
Ideal conditions rarely exist in real world hunting! With dozens of better calibers available, there is just no good reason to use any of the .22's, let alone recommending them to people whose marksmanship abilities you know nothing of!