Re: AR conversions
If not wanting a 223 and wanting great performance out to 1000 yards target wise, while providing a decent deer round, hands down the best bet is the 6.5 Grendel.
Check out competitionshootingsports.com should link you to a source.
The 6.5 Grendel I've shot a fair amount in its development stage and its a super round. AMU teams are playing with it a lot and are very happy. I was instrumental in their use of the 90 jlks in the 223 rounds and they were very happy with that. If they are happy with the Grendel(just a 6.5 PPC basically) then its a great round like I knew it would be.
Arne over at Competition shooting is a super guy and will keep you in the right direction. It beats the heck out of the other choices. Though the 6ppc is pretty decent, and the 6.8 POS round necked to 6mm is not a bad choice either. Its just that the 6.5 bullet is a better choice, IMHO.
Get as close as you can, but utilize your skills as needed.