I think the 30-06 AI might get you an additional 50-75 fps with heavier bullets at equal pressures but not much improvement for lighter bullets. My 30-06 factory barrel Rem 700 mountain rifle with a 22" tube gets 2858-2893 fps with 165 grain bullets and 59.0 grains of H4350.

Last edited by rflshtr; 09/16/14. Reason: correction