Kevin Brittingham of Q breaks down the 8.6 BLK for us.

Published on December 12, 2024
Duration: 80:24

Kevin Brittingham of Q discusses the development and capabilities of the 8.6 Blackout cartridge, drawing parallels to the 300 Blackout. He highlights its advantages for both military and civilian applications, emphasizing its effectiveness with both subsonic and supersonic loads. The conversation delves into the technical aspects of fast twist barrels, bullet design, and the importance of system integration for optimal performance.

Quick Summary

The 8.6 Blackout cartridge, developed by Q, offers enhanced performance over 300 Blackout with increased energy on target, suitable for larger game and demanding applications. It utilizes fast twist barrels and optimized bullet designs for both subsonic and supersonic loads, aiming for 1 MOA at 300 meters. Optimal barrel lengths vary from 8 inches for subsonic to 16 inches for supersonic use.

Chapters

  1. 00:09Introduction to 8.6 Blackout
  2. 00:46History of 8.6 Blackout Development
  3. 01:45Origins with 300 Blackout and Advanced Armament
  4. 04:06Early Development for SR-25 Platforms
  5. 05:02Resumption of Development and Military Interest
  6. 06:01Q's Vision: Boom Box and Fix Rifle Integration
  7. 07:11AR-10/SR-25 Magwell on AR-15 Platform Explained
  8. 08:04Durability and Material Science in Compact Platforms
  9. 09:07C350 Material for Bolt and Extension
  10. 11:26Core Audience and Elevator Pitch for 8.6 Blackout
  11. 12:168.6 Blackout vs. 300 Blackout: Energy and Range
  12. 13:59Military Engagements and Crossover to Hunting
  13. 15:22Real-World Combat Engagement Distances
  14. 16:07The Boom Box Gas Gun System
  15. 17:07Lessons Learned from Fast Twist Barrels
  16. 18:07Jail Test and Rotational Velocity Impact
  17. 19:39Challenges with Subsonic Bullet Expansion
  18. 20:23Advantages of Fast Twist: Penetration and Expansion
  19. 21:15Powder Development and Case Capacity
  20. 22:08Critique of 338 Arc and Hornady's Approach
  21. 23:288.6 Blackout vs. 338 Arc: Competition and Use Cases
  22. 24:09Limited Experience with 338 Arc vs. 8.6 Blackout
  23. 25:09Case Capacity and Powder Concerns Addressed
  24. 26:31Reliability and Magazine Considerations
  25. 29:28Twist Rate and Barrel Fouling Concerns
  26. 31:22Testing Barrels to Failure: 1:1 and 1:3 Twists
  27. 32:02Debunking Ammunition Company Folklore
  28. 33:04Bullet Integrity in Fast Twist Barrels
  29. 34:43Solving the 300-Meter Problem with Compact Weapons
  30. 35:11Cost of 8.6 Blackout Ammunition and Future Pricing
  31. 36:04Manufacturing Efficiency: 300 Blackout vs. 8.6 Blackout
  32. 37:56Future of 8.6 Blackout: SAMMI Approval and Industry Adoption
  33. 39:39Community Skepticism Towards New Cartridges
  34. 40:41Hornady's Marketing and Innovation Approach
  35. 41:36Twist Rate Superiority: 1:8 vs. Faster Twists
  36. 43:09Bullet Design for Dangerous Game vs. Deer
  37. 44:10Subx Bullet Performance in Fast Twist
  38. 45:40Devastating Wound Channel from 8.6 Blackout
  39. 47:48Initial Gel Tests and Future Testing Plans
  40. 48:26Pressure Differences: 8.6 Blackout vs. 300 Blackout
  41. 49:38Non-Adjustable Gas Block Design for 8.6 Blackout
  42. 50:33Critique of Arc Cartridges and System Design
  43. 51:47Lessons from 6.8 SPC and Cartridge-Specific Platforms
  44. 52:04Lack of Standardization in AR-10 Platforms
  45. 52:57Comparison to 224 Valkyrie's Market Failure
  46. 53:23Building Lightweight, Compact, and Affordable Weapon Systems
  47. 54:29Optimal Barrel Length for 8.6 Blackout
  48. 56:30300 Blackout vs. 8.6 Blackout: Barrel Length and Performance
  49. 57:12Q's Suppressor Development Philosophy
  50. 58:43System Approach: Guns and Suppressors Together
  51. 59:32Non-Adjustable Gas Block for Supers and Subs
  52. 60:06Suppressor Compatibility: Handgun Cans and 8.6 Blackout Pressure
  53. 61:19Destructive Testing for Suppressor Design
  54. 62:25Critique of Universal Suppressors
  55. 63:04The Age of Dedicated Suppressors
  56. 63:34Final Thoughts on 8.6 Blackout Development
  57. 64:07Innovation in 300 Blackout and 8.6 Blackout
  58. 66:07Barrel Life Considerations for Fast Twist Barrels
  59. 67:21Hard Chroming Barrels and M4 Accuracy Standards

Frequently Asked Questions

What is the primary advantage of the 8.6 Blackout cartridge?

The 8.6 Blackout offers increased energy on target compared to 300 Blackout, making it more effective for larger game or situations requiring more stopping power. It is designed to perform well with both subsonic and supersonic ammunition, providing versatility.

How does the 8.6 Blackout differ from 300 Blackout in terms of design?

While both originated from similar concepts, 8.6 Blackout utilizes a case derived from the Creedmoor family, optimized for SR-25 magazines. It employs faster twist rates and heavier projectiles to achieve greater ballistic performance, especially at longer ranges and with subsonic loads.

What role do fast twist barrels play in the 8.6 Blackout's performance?

Fast twist rates (e.g., 1:3 or 1:7) are essential for stabilizing the heavy, long projectiles used in 8.6 Blackout. This stabilization enhances accuracy, penetration, and the effectiveness of both subsonic and supersonic rounds by increasing rotational velocity.

What are the optimal barrel lengths for the 8.6 Blackout cartridge?

For 8.6 Blackout, an 8-inch barrel is ideal for subsonic-only use, a 12-inch barrel offers a balance for both supersonic and subsonic, and a 16-inch barrel maximizes supersonic velocity and range. Even shorter barrels can still achieve effective supersonic performance.

What is the significance of C350 material in Q firearms using 8.6 Blackout?

Q utilizes C350 material for critical components like the bolt and barrel extension in firearms chambered for cartridges like 8.6 Blackout. This high-strength alloy is chosen to meet stringent military durability standards, ensuring reliability under high pressure and extensive use.

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