This guide details how to adjust primer seating depth on a Dillon RL 550 reloading press to prevent light strikes and ensure consistent ignition. The process involves shimming the primer arm to achieve deeper seating, which can resolve ignition issues and improve overall ammunition reliability. This is crucial for handloaders experiencing gun malfunctions that may stem from improperly seated primers.
This guide details the setup and operation of the Lee Load-Master progressive reloading press, drawing on expert instruction. It covers component identification, essential cleaning and lubrication techniques for smooth operation, precise die and primer seating adjustments, and proper assembly of the case feeding mechanism. The video emphasizes critical maintenance steps and operational rhythm for consistent ammunition production.
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