I just wanted to my 2 cents. I have Remington 700P (Police version with 26" HB 308).
I found that 43Gr of IMR 4895 is giving me about the same velocity as FGMM with 168 SMK. (Both measured approx 2605-2620 by Oehler placed about 10 feet). The Primer is also Fed 210 Match.
But the group is better...