This Defender Ain't No Pretender!...Winchester Defender .40 S&W Self-Defense AMMO Ballistic Gel Test

Published on February 21, 2026
Duration: 12:19

This comprehensive ballistic gel test evaluates the Winchester Defender .40 S&W 165-grain bonded JHP ammunition. The review, conducted by an experienced firearms instructor, details velocity, penetration, and expansion characteristics across different Glock barrel lengths (3.5" and 4.5"). The results demonstrate excellent performance, with the bonded projectile maintaining integrity and achieving significant expansion and penetration through a heavy clothing barrier.

Quick Summary

The Winchester Defender .40 S&W 165gr bonded JHP demonstrated excellent self-defense performance in ballistic gel tests. With a heavy clothing barrier, it achieved velocities of 1113 fps (3.5" barrel) and 1142 fps (4.5" barrel), with reliable expansion up to .796" and effective penetration.

Chapters

  1. 00:00Introduction & Weather
  2. 00:23Winchester Defender .40 S&W Test Setup
  3. 00:47Ammo Details: 165gr Bonded JHP
  4. 01:38Cartridge Design Overview
  5. 02:03Test Firearms: Glock Barrels
  6. 02:23Anticipated Results & Setup
  7. 02:37Velocity Radar Setup
  8. 03:03.40 S&W Velocity Results (G27)
  9. 04:06Velocity Boost (G22)
  10. 05:11Gel Test Expectations
  11. 05:43Gel Penetration & Results
  12. 06:49Discussion of Gel Test Results
  13. 08:18Measurements & Projectile Integrity
  14. 09:11Recovered Projectiles Analysis
  15. 10:33Closing Remarks & Future Tests

Frequently Asked Questions

What were the key performance metrics for the Winchester Defender .40 S&W 165gr bonded JHP in the ballistic gel test?

The Winchester Defender .40 S&W 165gr bonded JHP achieved velocities of 1113 fps (G27/3.5") and 1142 fps (G22/4.5") after a heavy clothing barrier. Penetration was around 16.75" to 18.5", with excellent expansion up to .796" diameter, maintaining projectile integrity.

How did the Winchester Defender .40 S&W 165gr perform through a heavy clothing barrier?

The ammunition performed exceptionally well through a barrier of denim, fleece, and two cotton t-shirts. The bonded projectile expanded reliably and maintained its integrity, demonstrating effective energy transfer and penetration for self-defense.

What is the claimed versus actual velocity for Winchester Defender .40 S&W 165gr ammunition?

The box claims 1140 FPS for the Winchester Defender .40 S&W 165gr. Chronograph results showed an average of 1113 fps from a 3.5-inch barrel and 1142 fps from a 4.5-inch barrel after passing through a clothing barrier, indicating it met or exceeded claims in longer barrels.

What are the recovered projectile measurements for the Winchester Defender .40 S&W 165gr?

Recovered projectiles from the Winchester Defender .40 S&W 165gr showed excellent expansion, with measurements up to .796 inches in diameter. The bonded construction ensured the projectile remained intact, weighing approximately 163.6-164.2 grains post-test.

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