All my collected lead is range lead from a range that only allows M./L shooting, when I pick it up, I can tell by the degree of deformity which is soft and which is wheel weight lead, the soft stuff looks like a splatter, the hard is barely deformed. I tried to keep it separate at first but ended up melting it all together later on. The mixed lead seems to group just like the soft stuff, I usually shoot a .490 in a .50 and .530 in a .54 so there is plenty of patching between the ball and the bore.
Range lead, I used to wash it but found that all it takes is one drop of water in a hollow base mini to cause a violent lead spatter from the pot. Now I just skim off the crud after the lead melts and flux a bunch of times.
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