Best Varment Rifle
#22
We're talking about HUNTING, which is a whole different ball game. When hunting it is an ethical imperative to make every effort to ensure that the animals we take are harvested in the quickest and most humane way possible. Part of that is selecting an appropriate cartridge, bullet and max range to shoot at. The .223/5.56 (which are very similar, with only small differences in case thickness, chamber design and, in the case of military ammo, max pressure levels) is really running out of steam by 500 yards. It's just not carrying enough energy at that range to perform like it should against an animal target. At ranges past 300 yards, the .243 Win, 6mm Rem and .25-06 are all great choices for flat shooting rounds that carry much more energy than the .223 at 500 yards, and have higher BC's across the board to boot (a definite advantage past 300 yards).
Mike