What Does A Squib Load Sound And Look Like?

Published on April 5, 2025
Duration: 11:59

This video demonstrates the visual and auditory characteristics of squib loads and underpowered ammunition in both semi-automatic pistols and revolvers. It emphasizes the critical importance of recognizing these malfunctions to prevent dangerous bore obstructions and potential catastrophic failures (kabooms) when attempting to fire subsequent rounds. The instructor highlights the difference in how semi-automatics and revolvers might react to such malfunctions, stressing the need for immediate analysis of any unusual firearm behavior.

Quick Summary

A squib load is a firearm malfunction where a projectile is fired with insufficient or no powder charge, causing the bullet to lodge in the barrel. It sounds significantly quieter than a normal shot, often a muted 'pop' or 'thud' with little recoil. The primary danger is creating a bore obstruction, which can lead to a catastrophic 'kaboom' if a subsequent round is fired.

Chapters

  1. 00:33Introduction & Safety Warning
  2. 00:50Intentionally Creating Malfunctions
  3. 01:15Firearms Used: M&P 40 & S&W 686 Plus
  4. 01:41Chronograph Setup
  5. 02:10Testing .40 S&W: Full Power Load
  6. 02:42.40 S&W Full Power Velocity
  7. 02:51Testing .40 S&W: Half Power Load
  8. 03:09.40 S&W Half Power Results
  9. 03:29Testing .40 S&W: Full Squib Load
  10. 03:46.40 S&W Squib Load Failure
  11. 04:04Bullet Lodged in .40 S&W Barrel
  12. 04:30Danger of Obstructed Bore
  13. 05:05Testing .38 Special: Full Charge Load
  14. 05:29.38 Special Full Charge Velocity
  15. 05:36Testing .38 Special: Half Charge Load
  16. 05:52.38 Special Half Charge Results
  17. 06:15Bullet Extraction & Danger Explanation
  18. 07:05Testing .38 Special: Full Squib Load
  19. 07:23.38 Special Squib Load Outcome
  20. 07:53Revolver Crimp vs. Squib Load
  21. 08:13Extracted Bullet from .38 Special
  22. 08:46Conclusions & Key Takeaways
  23. 09:29Semi-Auto vs. Revolver Malfunction Differences
  24. 10:51Importance of Ammo Quality & Reloading QC
  25. 11:27Final Thoughts & Bullet Extraction

Frequently Asked Questions

What does a squib load sound like?

A squib load typically sounds significantly quieter than a normal shot, often described as a muted 'pop' or 'thud' with very little recoil. This lack of a loud report and strong recoil is a key indicator that something is wrong.

What are the dangers of a squib load?

The primary danger of a squib load is that the projectile lodges in the barrel, creating a bore obstruction. If a subsequent round is fired before this obstruction is cleared, it can lead to a catastrophic failure of the firearm, commonly known as a 'kaboom'.

How can you identify an underpowered or squib load in a semi-automatic pistol?

In a semi-automatic pistol, an underpowered or squib load will often fail to cycle the action, meaning the slide will not move rearward to eject the spent casing and chamber a new round. The sound will also be noticeably muted.

Why are squib loads potentially more dangerous in revolvers during rapid fire?

During rapid fire with a revolver, a shooter might instinctively pull the trigger for the next shot without fully processing the unusual sound or feel of a squib load. This lack of a mechanical pause, unlike in a semi-automatic, increases the risk of firing into an obstructed bore.

What is the recommended action if you suspect a squib load?

If you suspect a squib load due to an unusual sound, lack of recoil, or failure to cycle, immediately cease firing. Do not attempt to fire another round. Safely clear the firearm and visually inspect the bore for any obstructions before proceeding.

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