Testing a SOLGW CHF Combat V2 Barrel… It Didn’t Go Well

Published on May 20, 2026
Duration: 6:44

This video provides a detailed review and performance test of a Sons of Liberty Gunworks (SOLGW) 13.9-inch Cold Hammer Forged Combat V2 barrel. The reviewer, Preston Moore, assesses the barrel's physical characteristics, including its construction from 4150 chrome moly vanadium steel, QPQ treatment, and gas system dimensions. He then conducts live-fire accuracy tests with three different ammunition types, documenting group sizes and velocities. The findings indicate that while the barrel exhibits good initial build quality, its accuracy performance was below expectations compared to other barrels tested under similar conditions.

Quick Summary

The Sons of Liberty Gunworks 13.9-inch Combat V2 barrel, made from 4150 CMV steel with a 1-7 twist and QPQ treatment, was tested for accuracy. It produced 30-shot groups of 2.811 MOA with 77gr Federal, 3.570 MOA with 73gr Hornady, and 4.728 MOA with 62gr PMC M855, indicating performance below expectations.

Chapters

  1. 00:00Introduction to SOLGW Combat V2 Barrel
  2. 00:04Barrel Specifications & Construction
  3. 00:33Initial Barrel Assessment & Measurements
  4. 00:46Chamber, Throat, and Headspace Check
  5. 00:59Fitment and Gas Block Journal
  6. 01:09Borescope Inspection: Chamber & Rifling
  7. 01:18Rifling Type and Machining Marks
  8. 01:22Gas Port and Crown Inspection
  9. 01:32Accuracy Testing Setup & Methodology
  10. 01:51Federal Gold Medal 77gr Test Results
  11. 02:17Comparison: Federal Group vs. Other Barrels
  12. 02:46Hornady 73gr ELD Match Test Results
  13. 03:09Comparison: Hornady Group vs. Other Barrels
  14. 03:25PMC X-TEC 62gr M855 Test Results
  15. 03:57Comparison: PMC Group vs. Other Barrels
  16. 04:07Conclusion & Final Thoughts

Frequently Asked Questions

What are the key specifications of the Sons of Liberty Gunworks 13.9-inch Combat V2 barrel?

The SOLGW Combat V2 barrel is 13.9 inches long, cold hammer forged, made from 4150 chrome moly vanadium steel, features a 5.56 NATO chamber, a 1-7 twist rate, mid-length gas system, and QPQ treatment. It also has 1/2x28 muzzle threads.

How did the SOLGW Combat V2 barrel perform in accuracy tests?

In accuracy tests, the SOLGW Combat V2 barrel yielded 30-shot group sizes of 2.811 MOA with Federal Gold Medal 77gr, 3.570 MOA with Hornady 73gr ELD Match, and 4.728 MOA with PMC X-TEC 62gr M855. These results were considered below expectations compared to other barrels.

What was the average velocity recorded for the tested ammunition through the SOLGW barrel?

Average velocities recorded were 2,272 fps for Federal Gold Medal 77gr, 2,458 fps for Hornady 73gr ELD Match, and 2,752 fps for PMC X-TEC 62gr M855. The velocity for the Federal load was noted as potentially affected by cooler ambient temperatures.

What is the significance of the machining marks observed in the barrel's chamber and rifling?

Light machining marks perpendicular to the rifling at the start of the chamber suggest it was reamer-cut, not forged. While this is common even in CHF barrels, it's a detail noted for its potential impact on precision.

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