.380 ACP: The Biggest Little Caliber

Published on June 4, 2019
Duration: 12:05

The .380 ACP, developed by John Browning in 1908, remains a dominant caliber for pocket pistols due to its size and weight advantage over 9mm, despite lower power. Modern polymer-framed designs like the Ruger LCP have revitalized its popularity for concealed carry. Ballistic testing shows .380 ACP often struggles to achieve optimal expansion and penetration simultaneously, with some loads like Hornady XTP prioritizing penetration.

Quick Summary

The .380 ACP is a dominant caliber for pocket pistols due to its small size and light weight, making it ideal for concealed carry. While less powerful than 9mm, modern designs have revitalized its popularity. However, ballistic testing shows it often struggles to achieve optimal penetration and expansion.

Chapters

  1. 00:00Introduction to .380 ACP
  2. 00:16History and Development of .380 ACP
  3. 01:25Decline and Resurgence of .380 ACP
  4. 02:55Modern Pocket Pistol Revolution
  5. 04:38.380 ACP vs 9mm Comparison
  6. 06:04Shootability and Recoil of .380 ACP
  7. 07:16Comparison with Smaller Calibers
  8. 09:34.380 ACP Ballistic Performance

Frequently Asked Questions

Why is the .380 ACP popular for concealed carry?

The .380 ACP is popular for concealed carry because pistols chambered in this caliber are typically very small and lightweight, making them easy to conceal in pockets or holsters without being bulky.

How does the .380 ACP compare to 9mm in terms of size and power?

.380 ACP offers a significant size and weight advantage, with pistols often being around 60% lighter than their 9mm counterparts. However, 9mm is generally more powerful and has better ballistic performance.

What are the challenges of shooting a .380 ACP pistol?

Small .380 ACP pistols can be difficult to shoot accurately due to snappy recoil and small grip sizes. This requires practice to manage effectively, especially for follow-up shots.

What did ballistic testing reveal about .380 ACP ammunition performance?

Ballistic gel tests show that .380 ACP ammunition often struggles to consistently achieve both adequate penetration (12-18 inches) and expansion (150%). Some loads prioritize penetration over expansion.

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