This guide details a comparative analysis of Forster, Lee Precision, and RCBS sizing dies for 300 Blackout ammunition, as presented by Johnny of Johnny's Reloading Bench. The expert-level instruction focuses on identifying dies that provide optimal neck tension and prevent bullet setback, crucial for both accuracy and feeding reliability. The process involves meticulous measurement of expander balls, case stretch, and headspace, followed by live-fire testing to evaluate accuracy and velocity.
This guide details advanced case preparation techniques for optimal reloading accuracy, as demonstrated by an expert with decades of experience. It emphasizes thorough inspection for case integrity, precise length measurement and trimming, and proper chamfering and deburring. The instructor stresses that excessive cleaning for aesthetic purposes is unnecessary and can introduce risks, advocating for a focus on essential steps for reliable performance.
This guide details the process of upgrading scope base mounting screws from standard 6-48 to stronger 8-40 size, a critical modification for rifles experiencing heavy recoil. Larry Potterfield, demonstrating master gunsmithing techniques, explains the necessity of this upgrade to prevent screw shearing and ensure scope reliability. The procedure involves precise drilling and tapping of both the rifle receiver and the scope bases, utilizing specialized tools for accuracy.
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