Did Soldiers Really Urinate on their Machine Guns? Gun Myth explained by Expert Jonathan Ferguson

Published on July 1, 2026
Duration: 15:13

This entry details the historical practice of soldiers using urine to cool water-cooled machine guns during extreme combat situations when water was scarce. Expert Jonathan Ferguson from the Royal Armouries confirms this practice, citing numerous historical accounts from WWI through the Korean War. While not a standard procedure, it was a desperate measure to keep vital weapons operational, highlighting the ingenuity and grim realities of warfare.

Quick Summary

Yes, soldiers did urinate on their machine guns as a desperate measure to prevent overheating when water was scarce. This practice is documented from WWI through the Korean War, particularly with water-cooled firearms like the Vickers and Maxim guns. Overheating can severely impact accuracy and lead to catastrophic failure.

Chapters

  1. 00:00Introduction: Gun Myths and Misconceptions
  2. 00:31The Vickers Machine Gun Explained
  3. 01:12The Myth: Urinating on Guns for Cooling
  4. 02:31Historical Precedent: Urine in Firearm Contexts
  5. 03:38WWI Accounts: The Vickers and Maxim Guns
  6. 06:00Spanish Civil War and WWII Evidence
  7. 09:56Russian Maxim Gun and Emergency Use
  8. 11:20Korean War Accounts: US Marines
  9. 13:29The Phrase 'Taking the Piss' Origin
  10. 15:02Conclusion: When You Have to Pee on Your Gun

Frequently Asked Questions

Did soldiers really urinate on their machine guns?

Yes, historical accounts confirm that soldiers, particularly during WWI, WWII, and the Korean War, did urinate on their water-cooled machine guns to prevent overheating when water was scarce. This was a desperate measure to keep vital weapons operational.

Why would soldiers urinate on machine guns?

Machine guns, especially water-cooled models like the Vickers and Maxim, require constant cooling during sustained fire. When water supplies ran out, soldiers would use urine as a substitute coolant to prevent the barrel from overheating, which could lead to reduced accuracy or catastrophic failure.

What are the risks of a machine gun overheating?

Overheating a machine gun can significantly reduce its accuracy as the metal barrel distorts. In extreme cases, the barrel can droop, or bullets may start exiting the barrel prematurely, posing a severe risk to the operator and friendly forces.

Are there other historical uses of urine related to firearms?

Historically, urine was also used to clean the bores of black powder guns and rifles. This practice is documented in historical texts on rifle shooting, indicating a broader, albeit unconventional, use of urine in firearm maintenance and operation.

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