Lee Precision 90786 Taper Crimp Die 45 Colt/454 Casull 7/8x14 Steel

The Lee Precision Taper Crimp Die (model 90786) is a dedicated finishing die for the handgun reloader handloading .45 Colt and .454 Casull. It is designed to be added to an existing die set or run on its own as the final step in a pistol reloading sequence, applying a precise, uniform taper crimp that sets the bullet without the case-mouth deformation common to poorly designed crimp dies.

Lee builds the Taper Crimp Die from hardened steel designed to overcome crimp problems caused by poor die design. The die is threaded 7/8x14, so it drops into any Lee turret or progressive press as well as presses from other manufacturers that use the same thread pitch.

Unlike a roll crimp that folds the case mouth inward onto a lead bullet, the Lee Taper Crimp gently squeezes the case mouth concentrically. This is especially valuable for .45 Colt target and cowboy-action loads and for jacketed or hard-cast .454 Casull projectiles, where a uniform crimp improves feeding, accuracy, and pressure consistency. Lee confirms that the standard .45 Colt die is fully suitable for reloading .454 Casull, so this single die covers both calibers.

Sold as a single 1-die unit, the Lee 90786 is a focused, no-nonsense finishing die for the reloader working up .45 Colt cowboy-action, plinking, and hunting loads, or powerful .454 Casull hunting ammunition. It pairs naturally with any Lee pistol die set that includes a sizing die and bullet seater for the same caliber.