Better Than Expected.... Bear Creek Arsenal 20" HBAR Tested

Published on August 14, 2025
Duration: 12:13

This video provides a detailed review and performance test of a 20-inch HBAR barrel from Bear Creek Arsenal. The presenter conducts a thorough inspection, covering material specifications, chamber dimensions, and internal condition using a borescope. Extensive range testing with three different ammunition types, including 30-shot groups, is performed to evaluate accuracy, velocity, and rifle stability. The results are analyzed using metrics like MOA and AZ score, offering a comprehensive performance assessment.

Quick Summary

The Bear Creek Arsenal 20" HBAR barrel features a .223 Wylde chamber, 1:8 twist, and 416R stainless steel construction. In testing, it achieved a 1.739 MOA 30-shot group with Federal Gold Medal 77gr ammo, yielding an AZ score of 303 yards, but struggled with Winchester M193 55gr ammo, producing a 5.301 MOA group.

Chapters

  1. 00:00Introduction & Barrel Specs
  2. 00:43Barrel Inspection & Measurements
  3. 01:54Borescope Inspection
  4. 03:09Break-in Procedure
  5. 03:27Shooting Setup & Equipment
  6. 04:30Testing Methodology
  7. 04:59Federal Gold Medal 77gr Group Test
  8. 07:47IMI Razor Core 77gr Group Test
  9. 09:39Winchester M193 55gr Group Test
  10. 11:21Overall Results & Conclusion

Frequently Asked Questions

What are the key specifications of the Bear Creek Arsenal 20" HBAR barrel tested?

The Bear Creek Arsenal 20" HBAR barrel is button rifled, made from 416R stainless steel, features a .223 Wylde chamber, a 1:8 twist rate, rifle-length gas system, a 750 gas block journal, and 1/2x28 threads. It weighs 3.3 lbs.

How did the Bear Creek Arsenal 20" HBAR barrel perform with different ammunition types?

The barrel achieved its best accuracy with Federal Gold Medal 77gr (1.739 MOA), followed by IMI Razor Core 77gr (2.463 MOA), and struggled with Winchester M193 55gr (5.301 MOA) in 30-shot groups at 100 yards.

What were the findings from the borescope inspection of the Bear Creek Arsenal barrel?

The borescope revealed a rough and uneven throat, some defects in the rifling, and a slightly rough crown with a burr. The chamber and gas port appeared clean.

What is the AZ score and what does it represent for the tested groups?

The AZ score represents the maximum distance at which a calculated group size would fit into a USPSA A-Zone. For the Federal Gold Medal 77gr group, it was 303 yards, for IMI Razor Core 77gr it was 245 yards, and for Winchester M193 55gr it was 88 yards.

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