i was trying out some 45 cal sagebrush felt wads with round ball in a cva kodiax 45. i tried .454 and .457" balls cast from my lee molds. the best groups were from the.457" dia rb. now i have ordered some 50 cal felt wads to try with conicals on my 50 inlines. i would also like to try some round balls with the felt wads. i am thinking i could try the lee .500" round ball mold, maybe shim it out to .505" . anyone try this? at 75 i just punch paper, no hunting, thanks.