Faxon AR-15 Gunner Barrel Accuracy Stress Test

Published on July 31, 2024
Duration: 7:30

This video provides an in-depth accuracy stress test of a Faxon AR-15 Gunner profile barrel. The instructor demonstrates a rigorous 30-shot group testing methodology to assess barrel performance under simulated match conditions. Ammunition performance varied significantly, with heavier match-grade bullets yielding tighter groups than lighter training rounds.

Quick Summary

The Faxon AR-15 Gunner profile barrel, tested with a 30-shot group methodology, achieved its best accuracy with 77-grain Sierra Match King handloads and 69-grain Federal Gold Medal Sierra Match Kings, yielding group sizes around 2.6 MOA. Lighter 55-grain ammunition resulted in significantly larger groups, approximately 5.6 MOA.

Chapters

  1. 00:00Introduction to Faxon AR-15 Gunner Barrel
  2. 00:24Borescope Inspection
  3. 00:5330-Shot Group Testing Methodology
  4. 01:30Range Setup and Equipment
  5. 02:10Rifle Configuration Details
  6. 03:40Ammunition Types Tested
  7. 04:3777gr Sierra Match King Handload Results
  8. 05:1569gr Federal Gold Medal Results
  9. 05:4255gr Norma Training Ammo Results
  10. 06:1055gr Cheap Reloads Results
  11. 06:20Overall Results and Comparison
  12. 06:48Leaderboard and Final Thoughts
  13. 07:14Conclusion and Future Videos

Frequently Asked Questions

What is the Faxon AR-15 Gunner profile barrel's twist rate and chambering?

The Faxon AR-15 Gunner profile barrel features a 5.56 NATO chamber and a 1:8 twist rate. This twist rate is generally well-suited for stabilizing a wide range of bullet weights commonly used in the 5.56 NATO cartridge.

How does the instructor test barrel accuracy under stress?

The instructor performs 30-shot groups to simulate match conditions and ensure repeatable accuracy, rather than relying on potentially lucky 5-shot groups. This method replicates the shooting volume experienced in multi-gun or DMR stages.

What were the accuracy results for different ammunition types with the Faxon barrel?

The Faxon barrel performed best with 77-grain Sierra Match King handloads and 69-grain Federal Gold Medal Sierra Match Kings, achieving group sizes around 2.6 MOA. Lighter 55-grain loads, both Norma training ammo and reloads, resulted in significantly larger groups, around 5.6 MOA.

What are the key specifications of the Faxon Gunner barrel tested?

The tested Faxon Gunner barrel is 14.5 inches long with a pinned and welded muzzle brake. It has a Gunner profile for lightweight design, a 1:8 twist, a 5.56 NATO chamber, and a slightly over-gassed 0.082-inch gas port. It is also nitride treated.

Related News

All News →

More Reviews Videos You Might Like

More from Preston Moore

View all →