varmit/game gun

Personally I would go with the 223. This is just me. The 223 can be loaded up pretty good and can be deadly accorate. I like the ar platform and is pretty versital. Get a 1 in 9 twist and u can shoot a wide range or weights from 40 to somewhere around 70 grain bullets with good results. If you reload even better because you can work up a load. Also if you go with a ar platform I suggest go with the 5.56 barrel or a 223 wilde or sammi 2 barrel so you can push the max limits of the gun. If you get a 223 barrel you have to shoot 223 ammo if you go with the 5.56 you can shoot the 5.56 or 223 with out problems.