Obtaining Proper Neck Tension While Reloading

Published on October 24, 2012
Duration: 4:54

Aaron Davidson, owner of Gunwerks, provides an expert guide on achieving optimal neck tension during reloading for enhanced accuracy. The video details the importance of precise measurements using digital calipers and the strategic use of Hornady bushing dies to control brass compression. Davidson emphasizes understanding the component interface and offers practical advice on equipment selection for consistent, long-range performance.

Quick Summary

Achieve optimal neck tension in reloading by measuring your resized brass case neck and loaded round diameters. A target of 0.002 inches is often recommended. Utilize Hornady Custom Shop bushing dies with specific bushings (e.g., .316 for 7 LRM) for precise control over brass compression, leading to enhanced long-range accuracy.

Chapters

  1. 00:00Introduction to Neck Tension
  2. 00:44The Relationship of Components
  3. 01:53Calculating and Measuring Tension
  4. 02:39Using Bushing Dies
  5. 03:44Equipment Selection Tips

Frequently Asked Questions

What is neck tension in reloading and why is it important?

Neck tension is the grip the sized brass case neck exerts on the bullet. Proper neck tension is critical for consistent ignition and accuracy, especially in long-range shooting, ensuring the bullet remains seated correctly during firing.

How can I measure and calculate neck tension?

You can calculate neck tension by measuring the diameter of a resized brass case neck and comparing it to the diameter of a loaded round. The difference indicates the amount of compression, with a target of around 0.002 inches often recommended for optimal performance.

What tools are recommended for achieving proper neck tension?

Essential tools include digital calipers for precise measurements. Specialized equipment like Hornady Custom Shop bushing dies, along with appropriate bushings and expander balls, are recommended for fine-tuning neck sizing and tension.

Should I use bushing dies for reloading?

Yes, using full-length bushing dies is highly recommended over standard dies. They allow reloaders to select specific bushings (e.g., .316 for 7 LRM) to precisely control the neck diameter and achieve consistent, optimal neck tension for improved accuracy.

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