Budget 300 Blackout Build

Published on June 1, 2018
Duration: 11:05

This video details the construction of a budget-focused 300 Blackout AR-15 upper receiver, emphasizing cost-effective parts without significant compromise. The build utilizes an Aero Precision upper, a Break Arms handguard, a Bear Creek Arsenal 16-inch fluted stainless steel barrel, and a Sig Sauer muzzle brake. Accuracy testing was conducted at 50 yards with various ammunition types, revealing average 100-yard groups around 2 inches, suitable for its intended purpose as a hunting rifle.

Quick Summary

This budget 300 Blackout AR-15 build focuses on cost-effective components like an Aero Precision upper and a Bear Creek Arsenal 16-inch fluted barrel. Accuracy tests at 50 yards, extrapolated to 100 yards, showed average groups around 2 inches, deemed suitable for hunting applications.

Chapters

  1. 00:11Introduction to Budget 300 Blackout Build
  2. 00:35Upper Receiver Build Overview
  3. 01:16Aero Precision Upper Receiver Choice
  4. 01:48Break Arms Handguard Selection
  5. 02:33Gas System Components
  6. 02:40Bear Creek Arsenal Barrel Deep Dive
  7. 03:22Sig Sauer Muzzle Device
  8. 03:47Optics for Testing
  9. 04:21First Shots: Remington SuperSonics
  10. 04:45Subsonic Ammo Test (Unsuppressed)
  11. 05:16Accuracy Testing Conditions (50 Yards)
  12. 05:59Ammunition Variety for Testing
  13. 06:25American Eagle FMJ Accuracy Test
  14. 06:53Winchester Extreme Point Accuracy Test
  15. 07:19Remington Supersonic Accuracy Test
  16. 07:48Subsonic Hollow Point Accuracy Test
  17. 08:06Accuracy Results Analysis (50 Yards)
  18. 08:47Group Size Comparison (Estimated 100 Yards)
  19. 09:25Uncle's Accuracy Test Results
  20. 10:06Overall Accuracy & Hunting Suitability
  21. 10:21Future Testing Plans (Match Ammo, Break-in)

Frequently Asked Questions

What are the key components of this budget 300 Blackout AR-15 build?

The build features an Aero Precision upper receiver, a Break Arms 12-inch M-LOK handguard, a 16-inch fluted stainless steel barrel from Bear Creek Arsenal, and a Sig Sauer SRD760 QD muzzle brake. It leverages an existing lower receiver, BCG, and charging handle.

What was the accuracy performance of the Bear Creek Arsenal 300 Blackout barrel?

During testing at 50 yards, the average group sizes, when estimated for 100 yards, were around 2 inches. While the barrel is advertised with a 1 MOA guarantee, initial tests with non-match grade ammunition did not consistently achieve this.

Is this budget 300 Blackout build suitable for hunting?

Yes, the build is intended as a hunting rig. The 16-inch barrel provides good velocity, and the accuracy achieved (around 2 inches at 100 yards) is considered sufficient for hog hunting and similar applications.

What ammunition was used for accuracy testing?

The testing included Winchester Deer Season Extreme Point, American Eagle Full Metal Jacket, and Remington SuperSonic and Subsonic hollow points. The presenter noted that none of this was match-grade ammunition.

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