If for some reason you hear gun shots, I can assure you the last thing anyone would be wondering is what type of gun, caliber, ect... it is. You'd just want to get the hell out of there asap. Yes there are many variables, stopping power, ect.. im not trying to bring up nor argue any of them. A bigger round will (most of the time) have more torque then a .22 ,for hunting I dont see why a .223 wouldnt work //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif
Doesnt matter if its a .50 cal or a .22, if you get hit, you'd think it something.
I would however love one of these //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif
http://www.barrettrifles.com/rifles/rifles_82A1.htm