First off, yes. I know .223 is not popular with some for hunting deer since they see it as "underpowered". I think that theory is BS based on what I have seen/heard from friends and family who have used .223 for years to hunt deer, and from what I've read on numerous sites and forums. If you put the round where it needs to go, it will take down a deer just fine. Now then, on to the purpose of this thread. I plan on going deer (whitetail) hunting this year, and wanted to use a .223. I'm trying to decide on what bullet I want to use. (I reload, so I was planning on making my own). I'm trying to decide between either some 65gr Sierra GameKing bullets, or some Barnes TSX bullets (62gr, or 70 gr). Any opinions on these two, or any recommendations on other bullets? My rifle has a 1:7 twist, so it should be able to handle the 60gr-80gr bullets just fine shouldn't it? Thanks.