9mm Vs 40Cal

Published on September 8, 2021
Duration: 12:30

This video compares the 9mm Luger and 40 S&W calibers using two Walther P99 pistols. It analyzes chronograph data for muzzle energy and assesses recoil differences through practical shooting tests. The presenter and a guest, Tia, discuss the perceived recoil, controllability, and speed of follow-up shots, concluding that while 40 S&W offers more energy, 9mm Luger is generally more controllable and pleasant for high-volume shooting, though a recoil-reducing system can significantly mitigate the 40 S&W's felt recoil.

Quick Summary

The 40 S&W caliber generally produces more felt recoil than 9mm Luger, potentially slowing follow-up shots. However, recoil-reducing systems can significantly mitigate this difference, making the 40 S&W more controllable and pleasant to shoot. While 9mm remains popular for its balance of effectiveness and shootability, advancements in recoil mitigation can make 40 S&W a viable option for those seeking its ballistic advantages.

Chapters

  1. 00:08Introduction and Setting
  2. 00:349mm vs 40 Caliber Debate
  3. 01:02Presenter's History with Calibers
  4. 01:16Vintage Walther P99 Acquisition
  5. 01:44Testing Plan: Chronograph and Steel
  6. 01:47Ammunition Selection
  7. 02:569mm Chronograph Test
  8. 03:5040 Cal Chronograph Test
  9. 04:33Initial Recoil Observation
  10. 04:35Recoil System Disclaimer
  11. 05:11Tia's 40 Cal Speed Test
  12. 06:07Tia's 9mm Speed Test
  13. 06:59Sight Differences and Control
  14. 07:09Recoil Control Difference Assessment
  15. 07:43Presenter's 40 Cal Speed Test (Attempt 2)
  16. 08:18Presenter's 9mm Speed Test (Attempt 2)
  17. 09:00Audience Discussion: Is 40 Worth It?
  18. 10:03Experiment: DPM System in 40 Cal
  19. 10:44Tia's 40 Cal Test with DPM System
  20. 11:27Final Thoughts on 40 Cal with DPM
  21. 11:53Audience Question: Reinvigorating 40 Cal?
  22. 12:12Conclusion and Future Analysis

Frequently Asked Questions

What is the main difference in recoil between 9mm Luger and 40 S&W?

The 40 S&W generally produces more felt recoil than 9mm Luger due to its higher energy and heavier bullet. This increased recoil can make follow-up shots slower and less controllable, especially without recoil-mitigating equipment. However, systems like the DPM recoil reducer can significantly lessen the perceived recoil of the 40 S&W.

How does a recoil-reducing system affect the shooting experience of a 40 S&W?

A recoil-reducing system, such as the DPM Systems multi-spring setup, can dramatically improve the shootability of a 40 S&W. By absorbing more of the recoil energy, it makes the firearm feel more controllable, allows for faster follow-up shots, and reduces the physical impact on the shooter, making it a more pleasant experience.

Is 40 S&W still a relevant caliber compared to 9mm Luger?

While 40 S&W offers more energy than 9mm Luger, its popularity has waned due to increased recoil and ammunition cost. Many shooters find 9mm Luger to be a better balance of effectiveness, controllability, and affordability for general use, training, and self-defense, especially with modern ammunition advancements.

What factors influence the speed of follow-up shots between 9mm and 40 S&W?

The primary factor influencing follow-up shot speed is recoil control. The 9mm Luger's lower recoil allows most shooters to reacquire the target and fire again more quickly. The 40 S&W's sharper recoil can cause more muzzle flip and shooter distraction, slowing down the cadence unless mitigated by practice or equipment.

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