Are they lying? [about Long Range shooting] feat Sidewinder Concepts

Published on December 14, 2024
Duration: 144:03

This video delves into determining the maximum effective range of firearms by analyzing velocity, energy, and mechanical limitations, a concept taught by Adrian of Sidewinder Concepts. It highlights how the transonic range significantly impacts projectile stability and predictability, emphasizing that while hits can be scored beyond this zone, repeatability decreases. The discussion contrasts high-performance rifles with cartridges like 7.62x39, illustrating how factors like ballistic coefficient and wind greatly influence long-range accuracy and effective terminal energy delivery.

Quick Summary

Determining a firearm's maximum effective range involves analyzing the 'Max Effect Triad': Velocity (staying supersonic), Energy (delivering sufficient foot-pounds), and Mechanical Limits (rifle/optic capabilities). The transonic range significantly impacts projectile stability, with predictability decreasing beyond this zone. Factors like ballistic coefficient and wind are crucial for long-range accuracy.

Chapters

  1. 05:01Introduction & Q&A
  2. 11:18Are They Lying About Long Range?
  3. 13:18Practical Accuracy Course Origins
  4. 18:19Martini Henry at 500 Yards
  5. 21:44P90 vs. SG550 vs. URGI
  6. 27:04TRG 42 & M110 K1
  7. 29:55Getting Humbled by Wind
  8. 33:38Loot Crates Explained
  9. 36:09Believing Your Own Hype
  10. 39:58Lessons from Adrian's Class
  11. 45:55Adrian's Max Effect Triad
  12. 53:51Velocity & Transonic Range
  13. 64:15Energy Delivery & Terminal Effects
  14. 68:07Mechanical Limitations
  15. 74:38Arctic Warfare Max Effect Analysis
  16. 76:047.62x39 Max Effect Analysis
  17. 84:43Conclusion & Key Takeaways

Frequently Asked Questions

What are the three key factors in determining a firearm's maximum effective range?

The maximum effective range of a firearm is determined by the 'Max Effect Triad': Velocity (ensuring the projectile remains supersonic for stability), Energy (delivering sufficient foot-pounds for terminal effect), and Mechanical Limits (the rifle's inherent accuracy and the optic's adjustment capabilities).

How does the transonic range affect projectile accuracy?

The transonic range, where a projectile slows from supersonic to subsonic speeds, creates significant turbulence as the sound wave catches up. This turbulence destabilizes the projectile, making its flight path unpredictable and reducing the repeatability of hits beyond this zone.

What is the recommended energy level for effective terminal performance?

For effective terminal performance on armored targets, a minimum of 500 foot-pounds of energy is generally recommended. For unarmored targets, this threshold can be lower, around 350 foot-pounds, though projectile design and shot placement are also critical factors.

Why is the ballistic coefficient (BC) important for long-range shooting?

Ballistic Coefficient (BC) measures a projectile's aerodynamic efficiency. A higher BC means a more streamlined projectile that retains velocity better and is less affected by drag and wind, leading to more predictable and accurate shots at longer distances.

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