Suppressed 9mm vs .45 for Home Defense — My Pick

Published on January 15, 2026
Duration: 0:38

This video compares suppressed 9mm subsonic and .45 ACP for home defense. The speaker, TheYankeeMarshal, ultimately picks .45 ACP for this specific scenario, noting a personal preference for the 45T model over the USP. The discussion highlights the nuances of caliber choice when suppressors are involved in a home defense context.

Quick Summary

For suppressed home defense, .45 ACP is often preferred over 9mm subsonic. The larger diameter of the .45 ACP round can offer better terminal ballistics at subsonic velocities, making it a more effective choice when the supersonic crack is eliminated by a suppressor.

Chapters

  1. 00:00Introduction: 9mm vs .45 ACP for Home Defense
  2. 00:08Defining the Suppressed Comparison
  3. 00:26Speaker's Pick: .45 ACP for Suppressed Defense

Frequently Asked Questions

Which caliber is better for suppressed home defense: 9mm subsonic or .45 ACP?

For suppressed home defense, .45 ACP is often considered superior to 9mm subsonic. The larger diameter of the .45 ACP round can offer better terminal ballistics at subsonic velocities, making it a more effective choice when the supersonic crack is eliminated by a suppressor.

Why would .45 ACP be preferred over 9mm for suppressed home defense?

While 9mm is a popular choice for home defense due to capacity, the use of a suppressor and subsonic ammunition changes the dynamic. .45 ACP's larger diameter can provide more reliable expansion and energy transfer at subsonic speeds, potentially leading to better stopping power in a defensive scenario.

What does 'subsonic ammunition' mean in the context of firearms?

Subsonic ammunition travels at or below the speed of sound, which is approximately 1125 feet per second. Using subsonic rounds with a suppressor significantly reduces the noise signature of a firearm by eliminating the sonic crack produced by bullets traveling faster than sound.

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