I don't think....just me here...that any discussion on the DOD using 556/223 is very relevant in the transition between shooting 2 legged GAME vs 4 legged....I personally have never seen any man or woman active in field engagement.....that weighed over 300 lbs....might be one! I've just never seen it. So if the discussion goes beyond Deer..... where's the comparison? Just me here! When the distance opens up with DOD field that's when the right tools for right job come out...the 300''s , .338s, and 50's.....hunting can be different...modern science....but SHOULD IT? One man's thoughts...