🔴UPDATE: MUST SEE!🔴 SIG P322 Barrel Lead Fouling Issue After "Service."

Published on July 22, 2022
Duration: 16:25

This video details a significant lead fouling issue encountered with a SIG P322 pistol, even after the barrel was reportedly replaced by the manufacturer. The presenter conducts extensive testing with various .22LR ammunition types, using a borescope to document the rapid and severe lead buildup. The findings suggest a potential systemic issue with the P322 barrels, as the fouling occurred much faster than expected and even with ammunition types cited by SIG as being used for testing.

Quick Summary

The SIG P322 pistol is experiencing severe and rapid lead fouling in its barrel, even after manufacturer service. Testing with various .22LR ammunition revealed that the fouling can obstruct the barrel and obscure rifling within approximately 120 rounds, with significant buildup starting as early as 40 rounds.

Chapters

  1. 00:00Introduction & P322 History
  2. 00:11Initial Lead Fouling Discovery
  3. 01:00Contacting SIG & Service Details
  4. 02:56Clean Barrel Borescope Inspection
  5. 03:43Testing Federal HV Match Ammo
  6. 05:41Post-Federal HV Match Borescope
  7. 06:26Testing CCI Mini Mags
  8. 07:25Post-CCI Mini Mag Borescope & Findings
  9. 09:30Testing Remington Thunderbolts
  10. 10:42Post-Thunderbolt Borescope & Severity
  11. 12:20Conclusion & Unacceptable Performance
  12. 13:33Ammunition List & Service Ticket Discrepancy
  13. 15:22Next Steps & Final Thoughts

Frequently Asked Questions

What is the primary issue discussed regarding the SIG P322?

The primary issue is severe and rapid lead fouling in the barrel of the SIG P322 pistol. This fouling occurs to the extent that it obstructs the barrel and makes the rifling lands and grooves indistinguishable, even after the firearm has undergone manufacturer service.

What ammunition types were used to test the SIG P322 barrel for lead fouling?

The testing involved several .22LR ammunition types, including Federal HV Match, CCI Mini Mags, Remington Thunderbolts, Winchester White Box, Remington Golden Bullets, and CCI Varmint. The presenter focused on Federal HV Match, CCI Mini Mags, and Remington Thunderbolts, which were also listed on the SIG service ticket.

How quickly did the lead fouling become apparent in the SIG P322 barrel?

Significant lead fouling was observed very rapidly. Noticeable lead buildup started within the first 40 rounds of Federal HV Match ammunition, and after approximately 120 rounds total, the fouling was severe enough to obscure the rifling at the muzzle end.

What was the outcome of the SIG P322's service for lead fouling?

The SIG P322 was sent to SIG Sauer for service, where the barrel was reportedly replaced and tested. However, upon return and testing by the presenter, the barrel exhibited the same severe lead fouling issue, suggesting the service did not resolve the problem.

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