I got the call from krieger telling me my barrel is finished and on its way. Its a 308 win, 1 in 10 twist 30 inch barrel thats going on a ruger rpr. I got the rpr cheap and it came with a timney trigger already on it for 900 bucks so dont chastise me to much. I have a 18 inch 308 that i load for but i cant find much info on where to start with the 30inch. I wanna shoot 175 smk hpbt, 200 smk hpbt, 210 bergers and the 200.20x bergers. Can somebody gimme some ideas of what powders to start with and what weight charge to start with