Now you can fully tailor your cartridge overall length and still properly crimp your bullet. A separate crimp operation simplifies reloading allowing more precise bullet insertion without deformation of the bullet. Buying my bullets without a cannelure and crimping with a Lee Precision .38-55 Factory Crimp Die lets you make terrific looking bullets at your customized length. Want a clean bullet with a minimal crimp? This is your answer! Be aware... changing bullet seating depth alters pressure curves. Bullets seated deeper than specification have a net increase in pressure while bullets seated shallower than specification have a net decrease in pressure. Approach your load development cautiously!