At the range I shoot at most of the competitors that shoot 308
agree on 175 Sierra MK as their preferance
most use IMR 4064 or RE 15 with the 175's
most find that the Sierra MK 175 usualy shoots best at 10 to 15 off the lands
(All my rifles (5- 308s) prefer 4064 better than RE 15, and 10 to 15 off is where they like the
Sierra MK 175's)
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