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

If thats correct its way too fast for a cast bullet, thats close to the mk 7 jacketed speed and that weighs 174 gr! It probably is unsafe and will also boot like a bastard and lead like buggery.
Visit the cast boolits website for advice otherwise look up the adi web manual it has a section on trailboss and some other powders for cast.
I used to use 15 grains of imr 4227 in a p14 behind a cast 210 gr rn which did about 1400 fps, never couldd get cast bullets to work ok in a 2 groove no4 though.