9MM vs 357 MAGNUM (Self Defense Test)

Published on September 21, 2025
Duration: 1:01

This self-defense test compares 9mm and .357 Magnum using water jugs. A 9mm Hydra-Shok penetrated 2.5 jugs, while a .357 Magnum TAC-XP cleared 4 jugs with greater impact. The .357 Magnum demonstrated superior penetration and energy transfer in this specific test scenario.

Quick Summary

In a self-defense test using water jugs, the .357 Magnum demonstrated superior penetration by clearing four jugs, while the 9mm penetrated two and a half. The .357 Magnum also exhibited a more violent impact.

Chapters

  1. 00:00Introduction: 9mm vs .357 Magnum
  2. 00:059mm Self Defense Test (Glock 19)
  3. 00:25.357 Magnum Self Defense Test (S&W 686)
  4. 00:54Test Conclusion & Results

Frequently Asked Questions

What was the penetration difference between 9mm and .357 Magnum in the water jug test?

In the test, a 9mm Hydra-Shok round penetrated two and a half water jugs. In contrast, the .357 Magnum TAC-XP round successfully penetrated four full water jugs, demonstrating significantly greater penetration.

Which caliber showed more expansion in the self-defense test?

The 9mm Hydra-Shok ammunition tested showed significant expansion after penetrating the water jugs. While the .357 Magnum also performed effectively, the visual focus on expansion was more pronounced with the 9mm round in this specific test.

What firearms were used in the 9mm vs .357 Magnum comparison?

The comparison utilized a Glock 19 pistol chambered in 9mm and a Smith & Wesson 686 revolver chambered in .357 Magnum. Both are popular choices for self-defense.

How did the impact of the .357 Magnum compare to the 9mm in the test?

The .357 Magnum round delivered a much more violent impact upon hitting the water jugs compared to the 9mm round. This suggests a higher energy transfer, which is often desirable for self-defense applications.

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