Achieving accurate 308 performance often copyrights on meticulous load development. Many marksmen find a winning combination using {168gr SMK bullets paired with Hodgdon H4350 . Published charts https://what-grain-bullet-is-h43787746.tribunablog.com/308-reloading-168gr-sierra-matchking-with-hodgdon-h4350-ideal-information-performance-56605282