For my 308, which is a Rem SPS tactical, I use the Sierra 150 gr SPT. My load is Varget, about 44-45 grains, R-P case, WLR. BTW, this same load works well and to the same POI with the Nosler 150 BTs. If you have a Nosler book, its their recommended load for 150 gr and Varget. Also, this same exact load worked very well with a Savage 16 as well. I killed 2 deer with it this year, both bang flops. Good load, very accurate, and kills great.
As always, your gun will take some fine tuning with this load.
Good Luck,
Deerandduck