Ha out there this is my first time for this so lets get started. I have just purchaced a savage 111 long range hunter in 338 lapua it has 1-9 twist so i got for starters the 285 Horandy and the 300 Berger i was just woundering what powder ? I have just got some Retumbo and cant find where to start. Any one out there willing to share a starting point would be good. I Guess i should update my reloading books.THANKSgun)