Why the British army strapped a rattle to a Lewis Gun, with firearms expert Jonathan Ferguson

Published on October 5, 2022
Duration: 11:42

This guide details the use of the Lewis Gun Mk.I training rattle, an official British military accessory from 1926 designed to simulate gunfire noise during training. Expert Jonathan Ferguson explains its construction, operation, and purpose as a cost-effective alternative to live ammunition. The video also highlights specific markings on the Lewis Gun and its unique BSA-patented bipod.

Quick Summary

The Lewis Gun Mk.I training rattle, officially adopted by the British Army in 1926, simulated machine gun fire noise to reduce ammunition costs during training. Operated by a hand-cranked cog striking a plate, it mimicked the sound realistically, offering a more effective auditory cue than verbal commands.

Chapters

  1. 00:00Introduction to Lewis Gun Rattle
  2. 01:00Markings and Official Status
  3. 01:47Demonstration of the Rattle
  4. 03:09Design and Origin
  5. 05:12Lewis Gun Specifics and Markings
  6. 06:36The BSA Patented Bipod
  7. 08:42The .303 Rimless Caliber

Frequently Asked Questions

What was the purpose of the rattle attached to the Lewis Gun Mk.I?

The rattle was an official British military training accessory adopted in 1926 to simulate the sound of machine gun fire. It was used to save ammunition costs and provide a realistic auditory cue during training exercises when live firing was impractical or too expensive.

How did the Lewis Gun training rattle work?

The device featured a mechanism similar to a traditional toy rattle. A handle, when turned, caused a metal cog to rapidly strike a metal plate, producing a loud, continuous clicking sound that effectively mimicked the noise of a Lewis Gun firing.

What markings are significant on the Lewis Gun Mk.I and its training rattle?

The training rattle often bears an Enfield monogram ('EFD') and a date, like '1926'. The Lewis Gun itself may show manufacturer markings like 'BSA' and caliber designations such as '.303 RIMLESS', alongside Belgian 'Armes Automatiques Lewis' markings.

Why was the .303 Rimless caliber developed for the Lewis Gun?

The .303 Rimless (technically semi-rimless) cartridge was developed around 1917 as an improvement over the traditional rimmed .303 British cartridge. The rimless design was intended to improve reliability and feeding in automatic weapons like the Lewis Gun.

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