This video details a DIY modification to a Lee 300 Blackout sizing die's expander ball to address inconsistent neck tension. The instructor demonstrates a process of sanding down the 0.307" expander ball to a smaller diameter (0.306" or 0.305") using various grits of sandpaper and finishing with polishing materials. The goal is to achieve tighter neck tension, comparable to Forester and RCBS dies, to prevent bullet setback during chambering.
To fix inconsistent neck tension with a Lee 300 Blackout sizing die, modify its 0.307" expander ball by sanding it down to approximately 0.306" or 0.305". Use a drill, calipers, and various grits of sandpaper, followed by polishing, to achieve a tighter bullet grip and prevent setback.
This guide details the use of the RCBS MatchMaster Powder Funnel Kit, a reloading tool designed to mitigate static electricity issues common with plastic powder funnels. The kit features an aluminum funnel with a special coating and interchangeable end pieces to ensure smooth powder transfer into cartridge cases, even with difficult powders like Trail Boss.
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.
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.
