Exceptions to everything, but most leading is caused by poor bullet fit (usually wrong diameter) or (to a much lesser extent) wrong alloy. Powder would be way, way down the list of causes.
I've been casting for many cartridges, rifle and handgun for quite a while. I've never been able to attribute leading to any powder, including Titegroup.
Last edited by rockquarry; 05-02-2018 at 09:33 PM.
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