To make a dipper start with .288 CuIn per ounce. May have to adjust some depending upon exact shot size & alloy. This figure was calculated form Hercules/Alliant loading manuals in which they have a chart showing length of shot column for 1oz shot in various size bores. No need for me to mention Rabbit's slick little trowel since you have one too.


Miller/TN
I Didn't Say Everything I Said, Yogi Berra