Lyman's chart on Alloy Hardness. Blending alloys formula. #2 Alloy is harder than needed for 45 acp or 38 special target loads. The amount of Tin can be reduced to 2% to $ave money for all casting. Add antimony to an alloy to make it harder & bullets larger in diameter, as they drop from the molds. Tin hardens some, but not as much as antimony. Adding Linotype to improve hardness & diameter is the best method. Wheel weights work well for target loads, without adding anyting.