What matters is how the factory stuff shoots IN YOUR RIFLE. I would only try ammo loaded with quality hunting bullets. In one of my 06's the PMC loads with the Barnes' XLC is the most accurate factory loading I could find. If you find something that is exceptionally accurate many would recommend you buy several boxes with the same lot #. Also many people believe that a rifle does not reach it's max accuracy until some magical # of rounds have gone down range - one recommendation suggests a 100 rounds. No matter what you decide accurate records are most important in correct decision making. Get lots of "experience" prior to your Sept hunt to include off hand practice. Good luck with your hunt.