I don't own a 30.06 anymore but when i did i never shot factory ammo so i can't help with that. I preferred the lighter bullets in my 30.06 and had good luck with those with accuracy and on game performance. I killed lots of deer using the Hornady 130gr sp and IMR4064. I also had good results on paper with the Sierra 125gr PH and 4064 but never shot a deer with that load. Back in 07 i worked up a load with the Barnes 130gr tsx and RL15 and killed some nice deer with that load. The lighter bullets kick up the velocity and really flatten out the 30.06. Mike