I know I shot two of them in CAS. Mine were .36 cal like the real ones. Maybe someone made a .45 version but it would still be a bear to use a .454 ball.?
well to be accurate, my Lyman mold throws .4525 ball. just a nice little ring shaved when loaded. 15 yards with the paper cartridges i handicap it into a 3 inch group one handed.