I shoot the 308 in 4 different rifles, Browning, M1A, HK770 and SL-7. I have found one consistant load for all 4. I shoot 168gr. SMK, or 168 Hornady VMax. Pushed by 45 grains of Varget. CCI primer. Browning delivers 3/4 inch groups at 200yds. the others deliver about 1 moa at a hundred.