Differences between the Lee-Enfield SMLE and the No.4

Published on May 17, 2018
Duration: 18:11

This video provides a detailed comparison between the Lee-Enfield SMLE (Short Magazine Lee-Enfield) Mark III* and the No. 4 Mark I rifles. Key differences highlighted include the sighting systems (tangent U-notch vs. aperture), action manufacturing design (complex curves vs. angular machining), bolt rail placement, stock and nose cap construction, internal disassembly complexity, barrel weight, and accuracy standards. The No. 4 generally features a heavier barrel and a simpler, more modern manufacturing approach compared to the SMLE.

Quick Summary

The Lee-Enfield SMLE typically features a tangent-type U-notch rear sight, while the No. 4 rifle is equipped with an aperture sight. The No. 4 also has a heavier barrel and a more angular action designed for efficient machining, contrasting with the SMLE's complex curves and lighter barrel.

Chapters

  1. 00:00Introduction to Lee-Enfield Variants
  2. 01:52Sighting Systems Comparison
  3. 03:38Action and Manufacturing Design
  4. 05:21Bolt Removal and Rail Design
  5. 06:46Stock and Nose Cap Differences
  6. 09:07Internal Disassembly
  7. 10:34Barrel Weight and Bedding
  8. 12:19Accuracy Standards

Frequently Asked Questions

What is the main difference in sights between the Lee-Enfield SMLE and the No. 4 rifle?

The most obvious difference is the sighting system. The SMLE typically uses a tangent-type U-notch rear sight, while the No. 4 rifle features an aperture sight, which is generally considered more precise.

How do the actions of the SMLE and No. 4 Lee-Enfield rifles differ in manufacturing?

The SMLE action has more complex curves and hand-work characteristic of older designs. In contrast, the No. 4 action is more angular and flatter, reflecting more efficient 1930s machining techniques designed for mass production.

What are the key differences in the barrels and bedding between the SMLE and No. 4 Lee-Enfields?

The No. 4 rifle features a significantly heavier barrel compared to the SMLE. The SMLE uses a complex spring-tensioned bedding system in its nose cap, while the No. 4 employs a simpler muzzle bearing system.

What were the accuracy standards for the SMLE and No. 4 rifles at 600 yards?

At 600 yards, an SMLE was required to place 9 out of 10 shots within a 24-inch square. The No. 4 rifle had a stricter requirement, needing to keep 9 out of 10 shots within an 18-inch square.

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