6.5 Grendel - 129gr Nosler Accubond with AR-Comp and 8208 XBR

Published on February 12, 2017
Duration: 18:53

This video details load development for the 6.5 Grendel using 129gr Nosler AccuBond bullets, focusing on AR-Comp and IMR 8208 XBR powders. The instructor, with experience in reloading and precision shooting, aims to find a final load for an upcoming hog hunt. The testing involves 10-shot groups to assess accuracy and consistency, with a final load selection based on performance and velocity.

Quick Summary

The optimal load for the 6.5 Grendel using 129gr Nosler AccuBond bullets is 26.8 grains of AR-Comp powder. This load achieved a 1.3-inch 10-shot group, a velocity of 2526 fps, and a standard deviation of 7.3 fps, making it a reliable choice for hog hunting.

Chapters

  1. 00:00Introduction & Goal: 6.5 Grendel Load Development
  2. 00:46Recap of Previous Powder Tests (TAC, CF 223, IMR 4166)
  3. 01:10AR-Comp Performance Review
  4. 01:31Testing More AR-Comp Loads
  5. 01:53Introducing IMR 8208 XBR for Testing
  6. 02:10AR-Comp Load Details (25.8, 26.8, 27.1 Grains)
  7. 03:408208 XBR Load Details (26.6, 27.0 Grains)
  8. 04:20Contingency Plan: 123gr Sierra Match King Loads
  9. 06:15Brass Preparation & Loading Process
  10. 06:47New Lee Factory Crimp Die Consideration
  11. 08:11Observations on Compressed Loads
  12. 09:22Range Session Begins: Cold Bore Shot
  13. 09:53Testing AR-Comp 25.8 Grains
  14. 11:17Testing AR-Comp 26.8 Grains
  15. 11:55Testing AR-Comp 27.1 Grains
  16. 12:33Transition to IMR 8208 XBR Testing
  17. 12:47Testing 8208 XBR 26.6 Grains
  18. 13:49Testing 8208 XBR 27.0 Grains
  19. 14:22Decision to Skip Sierra Match King Tests
  20. 15:10Back to the Bench: Load Analysis
  21. 15:36Final Load Selection: 6.5 Grendel
  22. 17:15Bullet Lot Consistency Concerns
  23. 18:01Powder Stockpile: AR-Comp
  24. 18:25Preview of Next Video: ATN Xsight Optic

Frequently Asked Questions

What is the recommended final load for the 6.5 Grendel with 129gr Nosler AccuBond bullets based on this video?

The recommended final load for the 6.5 Grendel with 129gr Nosler AccuBond bullets is 26.8 grains of AR-Comp powder. This load produced the best group of the day at 1.3 inches (10-shot group) with a velocity of 2526 fps and a standard deviation of 7.3 fps, making it suitable for hog hunting.

Which powders were tested for the 6.5 Grendel 129gr Nosler AccuBond load development?

The primary powders tested were AR-Comp and IMR 8208 XBR. Previous tests with TAC and CF 223 were mentioned as yielding poor results. The instructor also considered testing 123gr Sierra Match King bullets but ultimately decided against it for this video.

What were the key performance metrics for the selected 6.5 Grendel load?

The selected load, 26.8 grains of AR-Comp with the 129gr Nosler AccuBond, achieved a 1.3-inch 10-shot group, a velocity of 2526 feet per second, and a standard deviation of 7.3 feet per second. These metrics indicate good accuracy and consistency for hunting purposes.

Are there any concerns with the Nosler AccuBond 129gr bullets used in this 6.5 Grendel load development?

Yes, the instructor noted concerns about lot-to-lot consistency with the Nosler AccuBond 129gr bullets. A slight change in bullet shape was observed between different boxes, which could potentially affect accuracy and require re-verification of loads with new batches.

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