Advanced reloading ~ Case preparation for best accuracy!

Published on January 22, 2017
Duration: 12:12

This guide details advanced case preparation techniques for reloading, emphasizing inspection and trimming as crucial for accuracy. It highlights the importance of identifying fatigued brass, precise length measurement with tools like the Lyman Snap Gauge and Mitutoyo calipers, and proper chamfering/deburring. The instructor, with decades of experience, stresses that excessive cleaning for aesthetics does not impact performance.

Quick Summary

The two essential steps for reloading case preparation are thorough inspection of each case for defects like splits or damaged primer pockets, and trimming any cases that exceed the maximum specified length for the caliber. These steps are sufficient for optimal accuracy.

Chapters

  1. 00:06Case Preparation Essentials
  2. 00:20Inspect Case Mouths for Splits
  3. 00:53Inspect Case Body and Primer Pockets
  4. 01:26Case Fatigue in High-Pressure Rounds
  5. 02:14Final Case Condition Assessment
  6. 02:56Checking Case Length with Snap Gauge
  7. 03:30Precision Case Length Measurement
  8. 04:41Case Trimming Tools Explained
  9. 06:17Chamfering and Deburring Case Mouths
  10. 07:24Case Mouth Brushing for Carbon Removal
  11. 08:29Clean Brass is Aesthetic, Not Functional
  12. 10:22Tumbling vs. Manual Cleaning; Wet Cleaning Risks
  13. 11:30Conclusion: Simple Case Preparation Suffices

Frequently Asked Questions

What are the essential steps for reloading case preparation to achieve best accuracy?

The two essential steps for reloading case preparation are thorough inspection of each case for defects like splits or damaged primer pockets, and trimming any cases that exceed the maximum specified length for the caliber. These steps are sufficient for optimal accuracy.

How do I inspect brass cases for fatigue or damage before reloading?

Inspect case mouths for splits, check the case body for cracks (especially near the head), and examine primer pockets for soot or signs of blowout. Discard any cases showing these defects, as they indicate fatigue or have exceeded their service life.

What tools are recommended for precise case length measurement during reloading?

For precise case length measurement, a quality dial caliper, such as a Mitutoyo, is recommended. Digital calipers are also suitable, and accuracy to three decimal points is sufficient for reloading purposes.

Does cleaning brass cases make them more accurate for reloading?

No, cleaning brass cases to be bright and shiny is purely aesthetic and does not impact reloading accuracy, reliability, or functionality. Extensive testing has shown no performance difference between clean and unpolished brass.

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