My vote is for the 5.56/.223 with heavy bullets.
What you are missing when you are talking .308 is $$$. A .308 AR on average will cost you $500 more than a comparable 5.56/.223 AR. With a .308 AR, literally almost nothing is compatible with 5.56/.223.
What you are missing when you are talking .308 is $$$. A .308 AR on average will cost you $500 more than a comparable 5.56/.223 AR. With a .308 AR, literally almost nothing is compatible with 5.56/.223.