Gun Gripes #328: "Is 308 Dead?"

Published on January 31, 2022
Duration: 35:58

This entry analyzes the ongoing relevance of the .308 Winchester cartridge against the rise of the 6.5 Creedmoor, drawing on expert insights from Iraqveteran8888. It details ballistic performance, historical context, and practical applications, concluding that while .308 remains viable, 6.5 Creedmoor offers superior long-range performance due to advanced projectile design and ballistic efficiency. The analysis highlights SOCOM testing data and reloading considerations, providing a comprehensive overview for firearms enthusiasts.

Quick Summary

The .308 Winchester is not dead but faces challenges in its role as a premier long-range cartridge against the 6.5 Creedmoor. While .308 excels in shorter platforms, 6.5 Creedmoor offers superior accuracy, reduced recoil, and better wind resistance at distances beyond 800 yards due to its higher ballistic coefficient and sectional density, as confirmed by SOCOM testing.

Chapters

  1. 00:00Introduction: Is .308 Dead?
  2. 01:23The Enduring Role of .308
  3. 02:00Shift Towards 6.5 Creedmoor in Long Range
  4. 03:58Historical 6.5mm Cartridges
  5. 05:17.308 Battle Rifle Origins
  6. 07:52Ballistic Advantages of 6.5mm
  7. 09:49SOCOM Testing Data Comparison
  8. 11:10Energy and Terminal Performance
  9. 15:01Twist Rates and Projectiles
  10. 18:15The Case for Short-Barreled .308
  11. 22:22Reloading and Powder Stability
  12. 24:40Transonic and Subsonic Thresholds
  13. 28:24Scaling Up: 50 BMG vs .408 CheyTac

Frequently Asked Questions

Is the .308 Winchester cartridge still relevant in modern shooting?

Yes, the .308 Winchester remains relevant due to its widespread availability and effectiveness, particularly in shorter-barreled battle rifles. However, for premier long-range precision shooting beyond 800 yards, cartridges like the 6.5 Creedmoor offer superior ballistic performance.

What are the key ballistic advantages of 6.5 Creedmoor over .308 Winchester?

6.5 Creedmoor typically features higher ballistic coefficients and sectional density, allowing its bullets to resist wind drift and maintain velocity better at long ranges. This results in improved accuracy and a flatter trajectory compared to .308 Winchester.

Did SOCOM testing confirm the superiority of 6.5 Creedmoor?

According to 2017 SOCOM testing data referenced in the video, 6.5 Creedmoor demonstrated double the hit probability at 1,000 meters compared to 7.62x51 NATO (.308 Winchester), along with reduced wind drift and recoil.

Why is 6.5 Creedmoor considered a 'Goldilocks' bore diameter?

The 6.5mm bore diameter is considered a 'Goldilocks' size because it balances high sectional density for penetration with excellent ballistic coefficients for aerodynamic efficiency, offering a near-optimal combination for long-range performance without excessive recoil.

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