Case Capacities:
30-06 - - - 68.2 gr
30 Gibbs - 71.12 gr
3 gr of powder... I have better use for my money and time.
I appreciate the Gibbs as a theoretical concept but I like the 30-06 more, it always does everything I need a rifle to do.
If you're impressed with the 30 Gibbs my 300 WM will absolutely blow your mind...!