Turning your 9mm into a 10mm, the old fashioned way.

Published on September 8, 2021
Duration: 15:09

This video explores the historical .41 Action Express cartridge, designed as a 10mm-performance alternative for 9mm-sized firearms. It details the cartridge's rebated rim design, enabling easy caliber conversions in platforms like the Jericho 941 and Browning Hi-Power. Ballistics data is presented, comparing .41 AE performance against various 10mm loads, with modern 10mm generally outperforming the older cartridge.

Quick Summary

The .41 Action Express (AE) was developed in 1986 to offer 10mm-like performance in 9mm-sized handguns, featuring a rebated rim for easy conversion. While innovative for its time, modern 10mm Auto loads generally surpass its ballistic performance in energy and velocity. Firearms like the Jericho 941 were offered with conversion kits for this caliber.

Chapters

  1. 00:00Introduction to .41 Action Express
  2. 01:09History of 10mm Auto and .40 S&W
  3. 02:36Design of the .41 AE
  4. 04:39The Jericho 941 Kit
  5. 08:18Ballistics Comparison

Frequently Asked Questions

What was the purpose of the .41 Action Express cartridge?

The .41 Action Express (AE) was designed in 1986 to provide performance similar to the 10mm Auto but in 9mm-sized handguns. Its key feature was a rebated rim, allowing for easier conversion of existing 9mm firearms with minimal modifications.

How did the .41 AE compare to the 10mm Auto in terms of ballistics?

Ballistic data indicates that modern 10mm Auto loads generally outperform the .41 AE in terms of muzzle energy and velocity, especially when fired from comparable barrel lengths. The .41 AE was an earlier attempt at higher power in a smaller platform.

Which firearms were commonly associated with the .41 AE cartridge?

Firearms like the Jericho 941 were offered with conversion kits for the .41 AE, allowing users to switch between 9mm and .41 AE. The Browning Hi-Power was also a platform that could potentially be adapted.

What is a rebated rim on a cartridge?

A rebated rim is a cartridge rim that is narrower than the case body. This design feature on the .41 AE allowed it to headspace on the 9mm rim diameter, simplifying its use in 9mm firearm platforms.

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