300blk Build, Fun and Effective on a Budget

Published on July 5, 2023
Duration: 7:37

This video details a budget-friendly 300 Blackout AR-15 build, focusing on a 7.5-inch Faxon barrel with a 1:5 twist rate. The presenter highlights the barrel's specifications, price point, and suitability for subsonic ammunition, making it a capable option for home defense within 150 yards. While the build uses affordable components, the presenter identifies areas for future upgrades, including the optic and trigger.

Quick Summary

This budget 300 Blackout AR-15 build centers around a 7.5-inch Faxon Gunner profile barrel with a 1:5 twist rate, chosen for its balance of strength, weight, and projectile stabilization capabilities. The build utilizes affordable components, including a BCM upper and Vortex Crossfire optic, with plans for future upgrades to enhance performance.

Chapters

  1. 00:00Introduction to the 300 Blackout Build
  2. 00:12Build Specifications: 7.5" Faxon Barrel
  3. 00:20Component Overview: BCM, Magpul, Vortex
  4. 00:36First Shots and Shooting Impressions
  5. 00:56Build Philosophy: Rifle Growth and Home Defense
  6. 01:03Researching 300 Blackout AAC
  7. 01:19Why This Barrel? Faxon vs. Competitors
  8. 01:35Faxon Barrel Specs: Gunner Profile & 1:5 Twist
  9. 01:50Twist Rate Benefits: Stabilization & Terminal Energy
  10. 02:19Barrel Construction: 416R Stainless, 5R Rifling
  11. 02:41Complementary Build Components
  12. 03:00Identified Weak Points and Future Upgrades
  13. 03:10Suppressor Placeholder: Octane 45
  14. 03:23Trigger Upgrade Plans
  15. 03:47How Does It Shoot? Performance and Accuracy
  16. 03:51Ammunition Testing: Subsonic Rounds
  17. 04:11Ammunition Issues: Hornady VMAX
  18. 04:20Conclusion: Love for 300 Blackout
  19. 04:36Future Videos and Call to Action

Frequently Asked Questions

What are the key specifications of the 300 Blackout barrel used in this budget build?

The build features a 7.5-inch Faxon Gunner profile barrel with a 1:5 twist rate. This barrel is made from 416R stainless steel, includes 5R rifling, and has an 11-degree target crown for accuracy. The Gunner profile combines aspects of government, SOCOM, and pencil profiles for a balance of strength and weight.

Why is a 1:5 twist rate beneficial for a 300 Blackout barrel?

A faster twist rate, like 1:5, is beneficial for 300 Blackout as it increases projectile stabilization, especially for heavier subsonic rounds. This enhanced stabilization leads to improved accuracy and greater terminal energy on target, making the firearm more effective.

What types of subsonic ammunition were tested in this 300 Blackout build?

The build was tested with several subsonic ammunition types, including AAC 220 grain, Hornady 190 grain defensive rounds, Black Hills 220 grain, VELO 225 grain big game rounds, SIG performance loads, and discrete ballistics. Most performed well, except for Hornady VMAX style bullets.

What components are identified for future upgrades in this budget 300 Blackout build?

The presenter plans to upgrade the Vortex Crossfire red dot to an Aimpoint optic for better performance. Additionally, the current PSA trigger will be replaced with a preferred LaRue MBT 2S or Geissele trigger. A more suitable seven-inch rail is also being sought.

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