V Seven 6.5" 300 Blackout Barrel Review

Published on March 21, 2018
Duration: 18:41

This review covers the V Seven 6.5" 300 Blackout barrel, ideal for compact AR pistols and SBRs. It highlights the barrel's 416R stainless steel construction with a black nitride finish and 1:7 twist rate. The review details its proprietary gas system, velocity data for various loads, and accuracy potential, achieving sub-MOA at 50 yards. It emphasizes the importance of using an H1 buffer for reliability with this short barrel configuration.

Quick Summary

The V Seven 6.5" 300 Blackout barrel is made from 416R stainless steel with a black nitride finish and a 1:7 twist rate. It's ideal for compact AR pistols and SBRs. For reliable function, using at least an H1 buffer is crucial.

Chapters

  1. 00:00Introduction: V Seven 6.5" 300 BLK Barrel
  2. 01:05Understanding the 300 Blackout Caliber
  3. 02:12V Seven Weapon Systems Background
  4. 04:28Barrel Technical Specifications
  5. 05:10Proprietary Gas System Explained
  6. 07:12Buffer Weight Importance for Short Barrels
  7. 07:45300 BLK vs. 5.56 vs. 7.62x39 Comparison
  8. 09:19Velocity Data: 110gr, 150gr, 220gr Loads
  9. 11:01Reliability Testing & Buffer Fix
  10. 13:48Accuracy Testing Results (Sub-MOA)
  11. 14:44Pricing and Final Recommendation

Frequently Asked Questions

What are the key specifications of the V Seven 6.5" 300 Blackout barrel?

The V Seven 6.5" 300 Blackout barrel is made from 416R stainless steel with a black nitride finish. It features a 1:7 twist rate, poly rifling, and a 5/8x24 thread pitch. It utilizes a proprietary straight gas tube and a raised gas block.

What buffer weight is recommended for the V Seven 6.5" 300 Blackout barrel?

The reviewer strongly recommends using at least an H1 buffer for reliable cycling with this short 6.5-inch barrel. Initial cycling issues were resolved by switching to an H1 buffer as suggested by the manufacturer.

How accurate is the V Seven 6.5" 300 Blackout barrel?

During accuracy testing at 50 yards with a Trijicon MRO, the barrel demonstrated sub-MOA potential. Several shots were observed grouping tightly together, indicating excellent precision for its size.

What are the velocity results for different 300 Blackout loads from the 6.5" barrel?

Velocity tests showed approximately 2075 fps for 110gr loads, 1750 fps for 150gr loads, and 940 fps for 220gr subsonic loads when fired from the 6.5-inch barrel.

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