It is my understanding that the Sako A1 chambered in 6mm PPC has a 1-14" twist. Which bullets have you tried that provided great accuracy with this twist? I have the Sierra 60 grain HP, Hornady 65 grain Vmax, Sierra 70 grain Blitzking, Nosler 70 grain Ballistic Tip, Sierra 75 grain HP, Hornady 75 grain HP, and Sierra 80 grain Blitz. What others would you try? I worry some of the polymer tipped bullets may end up being too long.