I also currently use 20:1 in my Sharps, and while the accuracy is better than pure lead, I have not been incredibly impressed with it so far (Pederoli 1859 Cavalry).
I want to use wheel weight lead mixed with pure lead. Bought a Lee Hardness Tester and have been meaning to experiment to find the correct wheel weight ratio to equal the hardness of the 20:1.
Steve
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