I think you need to use a slower powder. I have shot a lot of 145gr Speer with different loads. Here is a few. PP4000mr, win case WLRM primer, 2.780 OAL
gave 2888FPS with SD of 9.6 it was a great load. Here is a 150gr Speer using RL26 it,s speed was 2868 FPS with WLRM primers 2.780 OAL Also very accurate.
it was a compressed charge. Using Win cases. Used Nosler Long Range 150gr, RL17 gave 2834 FPS 2.800 OAL Win case WLRM primers. Bullets to long for small case
if you ask me. 145gr Speer would be the heavest bullet I would use in the 7mm-08. I believe Hunter should also work but never loaded above 140gr. Good luck.
