I have a new dpms dcm that I am reloading for. The best powder I have used is win 748 using 24 gr and a 69gr sierra match. Some of my manuals say it is a light load. Noslier manual says it is a starting load sierra, says it is just off start and the new annual manual says it is almost max but dosent list a starting load. Is the a safe load? Is it heavy or light??