Lee Precision .38-40 Win Steel Factory Crimp Die - 90852

Overview

The Lee Factory Crimp Die for the .38-40 Winchester is a single-piece steel die designed to apply a secure, rifle-style crimp to pistol cartridges using a collet mechanism. This firm crimp allows the bullet to be held securely in place, which improves accuracy by increasing starting pressure and ensuring a more uniform pressure curve with less velocity variation. Because the collet is highly powerful, the die can effectively form a crimp groove even on bullets that do not have one, making the loading process more versatile. The die includes a carbide sizer that post-sizes the cartridge during the crimping operation to ensure it meets standard dimensions.

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