Lee use a solid carbide insert, ground to a special contour that
does not leave the objectional belt mark on the case, common to
ordinary carbide dies. With a carbide sizer, no case lube is needed,
and you don't even have to clean your cases!
No need for a taper crimp die, plus better accuracy with Lee Dies.
Taper crimp dies are used to correct the problems caused by the
improper expanding plug design or adjustment. They distort the
bullet shank and reduce accuracy. Because the Lee Expander flares
the minimum amount, consistent with easy bullet insertion, all of
the flare is removed with the bullet seating die, thus eliminating
the need for a taper crimp die.
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