I have a Lee six cavity 150 grain round nose mold and a four inch S&W M-15 that wants to shoot ICORE competition. I need a power factor of 120. bullet weight X velocity to equal 120 or better. 810+ FPS would do fine.
I have some WW 231, some WST and some Clays.
First thought is to use a near max load of WW 231 of about 4.2 grains.
Has anyone done this on a chronograph? Anyone else shoot ICORE with this mold? and a four inch 38?
I just want to have some fun!