RES45 That is what I would consider the perfect crimp on our bullet. When I take a tech call on a question like this I just have the loader do the math. Where is the number off? Measure the bullet, measure a sized brass, then measure the brass after the expander has been used. Remember that the brass will have a springback affect after it has been sized. I've never used a set of Lee dies, so I can't comment on them.
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