The 5.7 Reasons that 5.7x28mm is Better than 9mm

Published on August 8, 2022
Duration: 14:56

The 5.7x28mm cartridge offers several advantages over 9mm, including higher magazine capacity (e.g., 21-24 rounds vs. 17-18), significantly lower recoil for faster follow-up shots, and superior armor penetration capabilities. Its high velocity also provides a flatter trajectory and longer effective range compared to 9mm. The bottleneck design and specific feed ramps contribute to excellent reliability.

Quick Summary

The 5.7x28mm cartridge offers several advantages over 9mm, including higher magazine capacity, significantly lower recoil for faster follow-up shots, and superior armor penetration capabilities. Its high velocity also provides a flatter trajectory and longer effective range compared to 9mm.

Chapters

  1. 00:00Intro: 5.7x28mm vs 9mm
  2. 01:11History & Design Goals of 5.7
  3. 02:36Reason 1: Increased Capacity
  4. 03:59Reason 2: Lower Recoil
  5. 04:51Debunking .22 WMR Comparison
  6. 05:32Reason 3: Armor Penetration
  7. 06:35Reason 4: Longer Range
  8. 07:39Reason 5: Reliability & Feeding
  9. 08:49Reason 5.7: Suppressor Compatibility
  10. 09:58Terminal Performance & Conclusion

Frequently Asked Questions

What are the main advantages of the 5.7x28mm cartridge over 9mm?

The 5.7x28mm offers higher capacity in similar-sized firearms, significantly lower recoil for faster follow-up shots, and the ability to penetrate body armor that stops 9mm. It also boasts a flatter trajectory and longer effective range.

How does the recoil of 5.7x28mm compare to 9mm?

The 5.7x28mm cartridge has approximately 30% less recoil than 9mm. Despite higher chamber pressures, the lighter projectile weight results in a much flatter shooting experience and quicker target reacquisition.

Can 5.7x28mm penetrate body armor?

Yes, the high velocity of the 5.7x28mm allows it to defeat body armor that would stop standard 9mm rounds, including Level 2, 3A, and even Level 3 armor in some tests.

Is 5.7x28mm just a more powerful .22 WMR?

No, 5.7x28mm is significantly more powerful than .22 WMR. Out of a pistol, 5.7x28mm can reach over 2,000 FPS, while .22 WMR typically tops out around 1,200 FPS, making 5.7 nearly three times as powerful.

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