40s&w vs 357sig! - Glock 23

Published on May 8, 2019
Duration: 12:12

This guide details the process of swapping barrels on a Glock 23 to convert it from .40 S&W to .357 Sig, followed by a comprehensive ballistic gel test. The video, presented by an experienced hobbyist, compares the terminal ballistics of Speer Gold Dot .40 S&W and .357 Sig ammunition, including performance through a car door barrier. It highlights differences in bullet expansion, penetration, and fragmentation.

Quick Summary

The Glock 23 can be converted from .40 S&W to .357 Sig by swapping the barrel. Ballistic tests show .357 Sig creates larger wound cavities but fragments more through barriers, while .40 S&W maintains integrity and penetrates better. .357 Sig is also notably louder.

Chapters

  1. 00:00Introduction & Glock 23 Overview
  2. 00:15Sponsor: Turtle Lake Tactical
  3. 01:08Shooting .40 S&W in Glock 23
  4. 01:41.357 Sig Conversion Barrel Revealed
  5. 02:08Barrel Swap & Caliber Discussion
  6. 03:00.357 Sig Ammunition Details
  7. 03:26Shooting .357 Sig in Glock 23
  8. 04:06Ballistics Gel Test Setup
  9. 04:58.40 S&W Bare Gel Test
  10. 05:57.357 Sig First Gel Test & Reshoot
  11. 06:15.357 Sig Second Bare Gel Test
  12. 07:23Car Door Barrier Test Setup
  13. 07:52.357 Sig Car Door Test
  14. 08:41.40 S&W Car Door Test
  15. 09:35Bullet Performance Analysis & Comparison
  16. 10:40Outro & Future Videos

Frequently Asked Questions

How can a Glock 23 be converted from .40 S&W to .357 Sig?

The Glock 23 can be converted to .357 Sig by simply swapping the factory .40 S&W barrel for a .357 Sig conversion barrel. The same magazines can be used for both calibers, making the conversion a straightforward drop-in process.

What are the ballistic differences between .40 S&W and .357 Sig in a Glock 23?

In ballistic gel tests, .357 Sig generally creates a larger wound cavity but may fragment more easily through barriers compared to .40 S&W. The .40 S&W often shows better penetration and integrity after passing through barriers like car doors.

Which Speer Gold Dot ammunition performed better in barrier tests?

In the car door barrier test, the .40 S&W Speer Gold Dot 165gr bullet maintained its integrity and penetrated the ballistic gel completely, while the .357 Sig Speer Gold Dot 125gr bullet fragmented significantly after passing through the door.

Is .357 Sig significantly louder than .40 S&W?

Yes, the .357 Sig caliber is known for producing a significantly louder muzzle blast and more pronounced "bark" compared to the .40 S&W, even when fired from the same platform like the Glock 23.

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