AR15 vs Car... is G9 5.56 actually barrier blind?

Published on June 5, 2023
Duration: 4:54

This video from Farewell Firearms Training tests the barrier-blind capabilities of G9 5.56 54-grain solid copper hollow-point ammunition against standard 55-grain FMJ rounds when fired through a car windshield. The test demonstrates that standard FMJ rounds fragment significantly upon impact with glass, leading to poor terminal ballistics, while the G9 solid copper rounds largely maintain their integrity, suggesting superior performance in barrier penetration scenarios.

Quick Summary

G9 5.56 54-grain solid copper ammunition demonstrates barrier-blind performance by maintaining bullet integrity when fired through car windshields, unlike standard 55-grain FMJ rounds which tend to fragment.

Chapters

  1. 00:00Introduction: AR-15 vs Car Windshield Test
  2. 00:14Testing G9 5.56 54gr Solid Copper vs. 55gr FMJ
  3. 00:49Shooting 55gr FMJ Out of Windshield
  4. 01:1355gr FMJ Results: Fragmentation Observed
  5. 01:37Testing G9 5.56 54gr Solid Copper Out of Windshield
  6. 02:04G9 Solid Copper Results: Bullet Integrity Maintained
  7. 02:38Shooting 55gr FMJ Into Windshield
  8. 03:0955gr FMJ Into Windshield Results: Fragmentation
  9. 03:33Shooting G9 5.56 54gr Solid Copper Into Windshield
  10. 03:50G9 Solid Copper Into Windshield Results: Good Grouping
  11. 04:08Conclusion: Importance of Barrier-Blind Ammunition
  12. 04:40Contact and Next Video Preview

Frequently Asked Questions

How does standard 5.56 FMJ ammunition perform when fired through a car windshield?

When fired through a car windshield, standard 5.56 55-grain FMJ ammunition tends to fragment significantly. The high velocity causes the bullet to disintegrate upon impact with the glass, resulting in multiple pieces of the jacket and core rather than a single, intact projectile.

What makes G9 5.56 54-grain solid copper ammunition 'barrier blind'?

The G9 5.56 54-grain solid copper ammunition is considered 'barrier blind' because it maintains its structural integrity when fired through barriers like car windshields. Unlike FMJ rounds that fragment, these solid copper bullets largely stay intact, allowing for better terminal ballistics.

Why is bullet integrity important when shooting through vehicle glass?

Maintaining bullet integrity is crucial when shooting through vehicle glass because fragmented rounds lose their effectiveness. An intact bullet delivers more consistent terminal ballistics to the target, whereas a disintegrated round may not penetrate effectively or cause significant damage.

What are the implications of bullet fragmentation for defensive shooting?

Bullet fragmentation upon hitting barriers like glass means the projectile is not delivering its intended terminal ballistics. This can lead to reduced effectiveness against a threat if the bullet breaks apart before reaching its target, making barrier-blind ammunition a critical consideration.

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