Why .357 Can Be Sometimes Be More Than Magnum: Remington 158gr SJHP 16" Gel Test

Published on March 23, 2020
Duration: 6:26

Testing a Remington 158gr SJHP .357 Magnum load from a 16-inch Rossi M92 reveals impressive performance, achieving 1709.6 fps. The round exhibited significant fragmentation and penetration of 20.1 inches in ballistic gel, behaving more like a rifle cartridge due to its velocity. This challenges typical handgun round terminal ballistics expectations.

Quick Summary

The Remington 158gr SJHP .357 Magnum, fired from a 16-inch Rossi M92 carbine, averaged 1709.6 fps. It penetrated 20.1 inches in ballistic gel, retained 109.46 grains, and expanded to 0.611 inches, exhibiting significant fragmentation characteristic of rifle ammunition.

Chapters

  1. 00:00Intro: .357 Magnum Carbine Benefits
  2. 00:44Range Test: Rossi M92 & Gel Impact
  3. 01:32Gel Results: Fragmentation Analysis
  4. 03:05Technical Data: Velocity & Penetration
  5. 04:46Conclusion: Terminal Ballistics Theory

Frequently Asked Questions

What is the average velocity of the Remington 158gr SJHP .357 Magnum when fired from a 16-inch barrel?

When fired from a 16-inch barrel in a Rossi Model M92 carbine, the Remington 158gr SJHP .357 Magnum ammunition achieved an average velocity of 1709.6 feet per second (fps).

How did the Remington 158gr SJHP .357 Magnum perform in ballistic gel from a carbine?

The round showed impressive fragmentation and penetrated 20.1 inches in ballistic gel, with a retained weight of 109.46 grains and a maximum expansion of 0.611 inches, indicating rifle-like performance.

Why does .357 Magnum perform differently from a carbine compared to a handgun?

Carbine barrels, especially 16-inch ones, allow slower-burning powders common in magnum cartridges to fully ignite and burn, resulting in significantly higher velocities and thus different terminal ballistics.

What were the key terminal ballistics results for the .357 Magnum test?

The test yielded an average velocity of 1709.6 fps, 20.1 inches of penetration, 109.46 grains retained weight, and 0.611 inches of maximum expansion, with notable fragmentation.

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