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Actually the 500 18brn hardness 357mag bullets I melted in seemed to harden my alloy despite the buck shot. The buckshot melted like soft lead and the bullets I cast look fantastic and they cast like a dream.
The alloy is fairly hard but if I really bear down on it I can still mark it with my fingernail.
The most of the leading is in the last inch of a 3"barrel. I thought I was driving them to fast and stripping them in the rifling so I decreased my charge a little to see and the leading got worse in my opinion.
Could it be I need to up my charge a little due to a little increase hardness?
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