Lee Precision
38-55 Winchester Dies
38-55 Winchester Factory Crimp Die
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Lee 38-55 Winchester Factory Crimp Die crimps the bullet in place more firmly than any other tool. Tests demonstrate that even bullets which have no crimp groove will shoot more accurately. A firm crimp improves accuracy because pressure must build to a higher level before the bullet begins to move. This higher start pressure insures a more uniform pressure curve and less velocity variation.
38/357 Carbide Factory Crimp Die
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Lee 38 Special/357 Magnum/357 MAX Carbide Factory Crimp Die sizes the cartridge while being crimped so every round will positively chamber freely with factory like dependability. This die applies a roll crimp. The adjusting screw quickly and easily sets the desired amount of crimp. Trim Length is not critical so this extra operation takes less time than it would if cases were trimmed and chamfered. A firm crimp is essential for dependable and accurate ammunition, as it eliminates the problems of poor ignition of slow burning magnum powders.
