The Dead Caliber Theory Confirmed

Published on April 30, 2025
Duration: 5:38

The video discusses Glock's discontinuation of several 40 caliber Gen 4 models, reinforcing the 'dead caliber theory.' It argues that serious shooters, competitive shooters, and those attending advanced training courses primarily use calibers like 9mm, citing the Glock 47, 19 Gen 5, and 45 as examples. The presenter asserts that calibers like 40 S&W, 10mm Auto, 357 SIG, and even 45 ACP are becoming obsolete for practical, high-volume training and competition due to cost and availability.

Quick Summary

Glock's discontinuation of several Gen 4 40 caliber models confirms the 'dead caliber theory,' suggesting these calibers are becoming obsolete for serious shooters. The video advocates for 9mm Luger due to its affordability for training, magazine commonality, and availability in modern firearms like the Glock 47 and 19 Gen 5.

Chapters

  1. 00:00Glock Confirms Dead Caliber Theory
  2. 00:15Glock Discontinues 40 Caliber Models
  3. 00:35Gen 4 Glock 40 Caliber Production Ends
  4. 00:56Why Serious Shooters Avoid 40 Caliber
  5. 01:299mm is In: Modern Caliber Trends
  6. 01:56Calibers on Life Support: 10mm, 357 SIG, 40 S&W
  7. 02:41Law Enforcement & Military Trends
  8. 03:04The Massive Wave of Trends
  9. 03:33Competent Shooters' Choices
  10. 03:48Glock's List of Dead Calibers
  11. 03:57Don't Panic Buy Obsolete Guns
  12. 04:06Addressing 'Fuds' and 10mm Auto
  13. 04:18Rifles and Shotguns for Bears
  14. 04:329mm for Bear Defense?
  15. 04:49Dead Caliber Theory is Real
  16. 04:55Stop Using Obsolete Calibers
  17. 05:05Modern Training Calibers
  18. 05:16Dead Caliber Theory Part Three Summary

Frequently Asked Questions

What is the 'dead caliber theory' in firearms?

The 'dead caliber theory' suggests that certain handgun calibers are becoming obsolete for serious shooters. This includes those who compete, attend training, and shoot frequently. The theory is supported by industry trends like Glock discontinuing specific caliber models.

Which calibers are considered 'dead' according to the video?

The video identifies 40 Smith & Wesson, 10mm Auto, 357 SIG, 380 ACP, and 45 ACP as calibers that are becoming obsolete for serious shooters. This is evidenced by Glock discontinuing production of several Gen 4 40 caliber firearms.

What caliber does the video recommend for serious shooters?

The presenter strongly advocates for 9mm Luger as the primary caliber for serious shooters. This is due to its affordability for training, commonality of magazines, and availability of modern firearms like the Glock 47, Glock 19 Gen 5, and Glock 45.

Why are calibers like 40 S&W and 10mm Auto considered obsolete?

These calibers are considered obsolete for serious shooters because they are more expensive to train with compared to 9mm, ammunition is less common, and they are not the preferred choice for competitive shooting or advanced training courses.

More Training & Techniques Videos You Might Like

More from Trench Grenade

View all →