I use SR-4759 in my 30-30 using a 150 grain Lee Gas Checked bullet. I haven't shot very many, under 20, in my Savage 340, but it seems to work fine. No sign of keyholing. Waiting for my neck expander so I don't shave lead.
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I don't carry a gun to go looking for trouble, I carry a gun in case trouble finds me.
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