WOW, 4.5 is pretty soft. Don't guys have leading problems if they shoot a good bit? I know in my .45 colt anything under 7.5 leads up my barrel pretty bad. But of course thats with smokeless loads. The connies I mold for my .50 cal sometimes are around 9-10.5 hard cast so they pretty much don't expand unless I'm under 40 yards and even then they don't mushroom a lot. But boy will they crush through both shoulders and have a hog doing the dirty nose shuffle!