I just won a bid on an 1860 Army and hate buying boolits. I don't have a mold yet and haven't even received my new 1860 Army but I've got some .454" round balls I cast for .45 Schofield cartridges.
My .454" balls are too big for the 1860 Army .44, so why not just run them through my sizer? Instead of getting my 1860 Army, measuring the chamber throat diameter and then trying to get a mould of the property dimension, or even worse buying lead balls from a store, why not resize my oversized .454" balls to fit the chamber throats? The end product will be slightly elongated which will be even better than a round ball and the round ball will find the ram rod top punch dimentions better than a conical boolit.