If your shooting revolvers it's a waste of time to slug the barrel. Size the cylinder chambers for accuracy.
I have a Lee BHN tester. Depending on what lead I can find the I cast 10~15 BHN. I save the 15 BHN for my 357 magnum and hot loads in my 1911. My 45 colts usually run soft at 10~12 for a 260 gn bullet at 850 fps measured by chronograph. I also load 200 gn 45acp target loads (~800 fps) using soft alloy.
I'v never had a leading problem.
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