I also use and get great results with IMR-4064. My load consists of the following componants.
Lapua brass
Nosler Custom Comp bullets 168 gr.
43.5 gr IMR 4064
CCI-BR-2 primer
2.850 OAL
Load consistantly prints 1/2" or less for 10 shot groups out of my 3 308 tactical rifles. TRG-22, FN-SPRA2, and Kimber Advanced Tactical. All 3 rifles have a 1/12 twist. Hope this helps.