Im trying to work up a few loads for the sierra match king 168gr...for my 700 police. Looking for your best loads for the tightes groups at all distances. Right now I will only be out to 100yds till I really get into a groove. Im sure the rifle will out shoot me for at least a year however durring break in I shot a couple .48" groups with federal eagle 150 grain but that was also @50yds...