Firearms Facts Episode 22: The 45 ACP

Published on June 9, 2013
Duration: 5:02

This episode delves into the history and modern applications of the .45 ACP cartridge, tracing its development by John Moses Browning and its adoption by the US military. It examines classic firearms like the 1911 and the S&W 1917 revolver, alongside specialized defensive ammunition such as Federal Guard Dog, highlighting the .45 ACP's enduring reputation for stopping power.

Quick Summary

The .45 ACP cartridge, developed by John Moses Browning in 1905, was adopted by the US military in 1911 with a standard load of a 230-grain bullet at 850 fps. It remains favored for its stopping power, with modern innovations like Federal Guard Dog ammunition enhancing its defensive capabilities.

Chapters

  1. 00:00History and Development of .45 ACP
  2. 01:18Remington R1 1911 Overview
  3. 01:47Smith & Wesson 1917 Army Revolver
  4. 02:36Specialized Ammunition: Federal Guard Dog
  5. 03:16Modern Defensive Ammunition Options

Frequently Asked Questions

When and by whom was the .45 ACP cartridge developed?

The .45 ACP (Automatic Colt Pistol) cartridge was developed in 1905 by the renowned firearms designer John Moses Browning. It was first chambered in the Colt Model 1905 pistol.

What was the original and standard military load for the .45 ACP?

The original load for the .45 ACP featured a 200-grain bullet at 900 feet per second. This was later updated to a 230-grain bullet at 850 feet per second for its military adoption in 1911.

What is the Federal Guard Dog ammunition and how does it work?

Federal Guard Dog is a specialized defensive round featuring a rubber ball inside its jacket. This design ensures reliable feeding in various firearms and provides expansion upon impact, offering high 'smash' with reduced penetration.

Why was the Smith & Wesson 1917 revolver created?

The Smith & Wesson 1917 revolver was developed because Colt could not produce enough 1911 pistols to meet demand during World War I. It was designed to fire the rimless .45 ACP cartridge using moon clips.

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