the problem with the 223 is not its penetrating power, but instead its energy. With such a small grain bullet you may hit the deer but there is also chances of traveling through without a fatal shot. I believe thats why the poster shot the deer in the head wanted to be sure it would fall with a small round. Not saying to have to go crazy with caliber size but you have better chances with a bullet with a must higher energy level down range.
Last edited by srt-4_i_swear; 11-12-2007 at 05:51 PM.