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 process of annealing brass cartridge cases using Annealing Made Perfect's advanced system. It emphasizes achieving consistent hardness levels through precise temperature-time control and micro Vickers hardness testing. The guide covers using the machine's 'Sort' and 'Analyze' functions to generate batch-specific annealing codes, ensuring optimal neck tension and case longevity for reloaders.
This video investigates significant velocity variations in 300 Blackout subsonic loads, specifically 147gr with Accurate 1680 powder. The presenter replicates a commenter's findings where powder position within the case dramatically affects muzzle velocity, with swings up to 200 ft/s observed. This phenomenon is linked to inconsistent ignition, particularly in low-charge-weight, high-capacity cartridges. The testing involved comparing CCI BR4, SNB, and Federal AR Small Rifle Match primers, shooting rounds with powder settled horizontally versus vertically (powder towards the primer).
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