Lee Precision 90780 Taper Crimp Die 9mm Luger / 38 ACP / 38 Super / 380 ACP

The Lee Precision 90780 Taper Crimp Die is a single-die reloading tool designed to apply a precise, uniform taper crimp to pistol cartridges in 9mm Luger, .380 ACP, .38 Super, and .38 ACP. Built from hardened steel, this die is engineered to overcome the crimp problems caused by poorly designed dies and deliver consistent results for the handloader.

A taper crimp is essential for cartridges that feed reliably through autoloading pistols, as it slightly reduces the case mouth diameter without deforming the bullet. The Lee design firmly and precisely crimps the bullet in the case mouth, helping to improve the accuracy of loaded ammunition and ensuring smooth feeding in semi-automatic handguns. The taper crimp approach is preferred over a roll crimp for these straight-walled pistol cases because it removes the case mouth flare left by the expander without squeezing the bullet.

This die is sold as a single unit, intended to be added to an existing reloading press setup alongside your sizing and bullet-seating dies. It is sold brand new in the box with a plastic storage case to keep the die protected when not in use.