This guide details how to properly set up a bullet seating die to achieve the correct Cartridge Overall Length (COL). It emphasizes adjusting the die body for no crimp initially, then using the seat plug to fine-tune the bullet seating depth. Achieving the correct COL is crucial for reliable chambering and magazine fit, preventing issues like a hard-to-close bolt.
A bolt that is difficult to close on a loaded round is often caused by incorrect bullet seating depth or an unintended crimp applied by the seating die, rather than a case sizing issue. Proper setup involves adjusting the die body for no crimp first, then using the seat plug to achieve the correct Cartridge Overall Length (COL).
This guide details the use of the Lee Precision Deluxe Carbide Micrometer 4-Die Set for precise bullet seating. The micrometer feature allows reloaders to record and quickly return to specific seating depths, enhancing consistency and efficiency. The set is presented as a valuable tool for achieving repeatable results in handloading, especially when switching between different bullet types.
This guide details the installation and use of the Lee Precision Factory Crimp Die. It highlights the die's automatic compensation system for case and bullet variations, simplifying the crimping process. The instructions cover setting the die, operating the press, and achieving a consistent crimp using its internal collet mechanism.
