How to Use the Lee Precision Load Master ~ PART 2

Published on March 25, 2016
Duration: 25:56

This guide details the process of loading 45 ACP cartridges using the Lee Load Master progressive press. It covers powder selection and measurement using the VMD system, primer seating, bullet seating depth, and case crimping. The instructor emphasizes meticulous verification at each stage to ensure safe and accurate ammunition production, highlighting common pitfalls and best practices for progressive reloading.

Quick Summary

Reloading with the Lee Load Master involves using the VMD system to calculate powder charges, selecting the appropriate disc size, and verifying charges by weighing. Always inspect cases for correct primer size and ensure consistent powder dispensing by filling the hopper and periodically testing.

Chapters

  1. 00:00Introduction and Powder Selection
  2. 00:3045 ACP Load Specifications
  3. 01:38Using the Lee VMD System
  4. 03:05Selecting the Correct Powder Disc
  5. 04:24Installing the Powder Measure
  6. 05:34Filling the Powder Hopper
  7. 06:13Testing Powder Charges
  8. 07:31Adjusting Powder Disc Size
  9. 08:51Reinstalling Powder Measure and Testing
  10. 10:30Primer Loading and Tray Setup
  11. 11:32Case Inspection: Large vs. Small Primers
  12. 13:36Verifying Primer Seating Depth
  13. 15:35Checking Primer Seating and Case Condition
  14. 16:33Bullet Seating and Case Flaring (Belling)
  15. 19:17Adjusting Bullet Seating Depth (OAL)
  16. 22:54Post-Sizing Die Adjustment (Crimp)
  17. 25:17Final Checks and Loading Pace

Frequently Asked Questions

How do you determine the correct powder charge for reloading with the Lee Load Master?

You use the Lee VMD (Volume Measure Density) system. First, find the VMD value for your powder in the manual. Then, calculate the required CC disc size by dividing your desired grain charge by the VMD value. Always verify the actual charge weight by weighing it on a scale.

What are common mistakes to avoid when reloading with a progressive press like the Lee Load Master?

Key mistakes include mixing large and small primer cases, failing to keep the powder measure tightly secured, short-stroking the press handle, and not verifying powder charges. Always inspect your brass and test your loads.

How do you ensure consistent powder charges with flake powders on a progressive reloader?

Flake powders can have varying density. Fill the powder hopper nearly to the top for consistent pressure. Test your charges by weighing them and adjust the powder disc size as needed. Periodically re-verify charges during the reloading session.

What is the purpose of the post-sizing die on the Lee Load Master?

The post-sizing die corrects any bulges in fired cases, ensuring they return to factory dimensions. This is particularly useful for cases that may have expanded excessively during firing, guaranteeing they will chamber properly.

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