Is It REALLY That Much BETTER?.....357 Sig vs 9MM +P+ Self-Defense AMMO Test!

Published on December 3, 2023
Duration: 15:32

This expert-level analysis compares .357 Sig and 9mm +P+ self-defense ammunition using rigorous testing protocols. The .357 Sig demonstrated superior velocity and energy, resulting in more significant temporary cavity disruption and fragmentation, while the 9mm +P+ showed good penetration and expansion with less fragmentation. The video highlights the importance of detailed ballistic testing for understanding ammunition performance in self-defense scenarios.

Quick Summary

Expert ballistic testing reveals .357 Sig ammunition achieves higher velocity (1464 fps) and energy (590 ft-lb) than 9mm +P+ (1237 fps, 421 ft-lb), resulting in more significant temporary cavity disruption and fragmentation. While 9mm +P+ offers good expansion and weight retention, .357 Sig demonstrates superior terminal ballistics.

Chapters

  1. 00:00Introduction and Setup
  2. 00:45Ammunition and Firearms Overview
  3. 03:389mm +P+ Velocity Testing
  4. 05:29.357 Sig Velocity Testing
  5. 07:34Ballistic Gel Performance
  6. 11:07Projectile Analysis
  7. 13:17Conclusion and Market Outlook

Frequently Asked Questions

How does .357 Sig compare to 9mm +P+ in self-defense ammunition tests?

.357 Sig generally offers higher muzzle velocity and energy, leading to more significant temporary cavity effects and fragmentation. 9mm +P+ provides good penetration and expansion with less fragmentation, making it a viable alternative. Both were tested with Underwood 124gr loads from Glock pistols.

What were the key performance metrics for .357 Sig and 9mm +P+ ammunition in the test?

.357 Sig averaged 1464 fps and 590 ft-lb energy, penetrating 14.75 inches with fragmentation. 9mm +P+ averaged 1237 fps and 421 ft-lb energy, penetrating 14.5 inches with good expansion and weight retention.

What factors influence the choice between .357 Sig and 9mm +P+ for self-defense?

.357 Sig's higher energy offers greater terminal ballistics, but 9mm +P+ is often more manageable and widely supported. Market trends, like Glock's push towards 9mm for law enforcement, also influence availability and future caliber viability.

How was the ballistic gel testing conducted for .357 Sig and 9mm +P+?

.357 Sig and 9mm +P+ ammunition were fired through ballistic gel blocks covered with heavy clothing barriers (denim, fleece, cotton t-shirts) to simulate self-defense scenarios. Chronograph data and projectile analysis were also performed.

More Reviews Videos You Might Like

More from Tools&Targets

View all →