Thread: Slow Powder, Heavy GC boolit, anyone got a ballistics calculator?

rather than/easier than a jacketed round simple put cleaning rod through to bolt face,mark and compare with pencil pushed projectile mark to give you MAXIMUM OVERALL LENGTH for the round using that projectile...seat projectile in case measure keep screwing die in untill the above determined length is reached then nip say half a turn of the seating die off that length and should be good