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The Ultimate Reloading Manual
Wolfe Publishing Group
  • reloading manual
  • alliant reloading data
  • reloading brass
  • shotshell reloading
  • bullet reloading
The Ultimate Reloading Manual
hodgdon load data

.380 Automatic (9mm Kurz)(using Hornady bullets)

Author: Brian Pearce / Wolfe Publishing Co.
Date: Jun 21 2012

The .380 Automatic was introduced around 1908 and was from the incredible mind of John Browning. It first appeared in the Colt Pocket Automatic Pistol. It has been chambered for many guns over the past century the world over and remains widely popular. Today it is more popular than ever, primarily being found in small conceal carry pistols.

In spite of being primarily a defense type cartridge, when chambered in accurate, target type guns, the cartridge is capable of outstanding accuracy with extreme spread often running in single digits for a ten shot string.

Bullets should be seated to the correct cartridge overall length (COAL), then taper crimped as a separate step. The crimp should measure a maximum of .373 inch at the case mouth, however, many factory loads measure as small as .3695 inch. All ammunition in the accompanying chart was crimped with a case mouth diameter of .370 inch which allowed proper headspace, held bullets in place during the feeding process and helped prevent the case from hanging up while feeding. Since the cartridge headspaces on the case mouth, crimping smaller than this figure may cause incorrect headspace.

Due to the unusually short case or powder column, seating bullets deeper than listed will cause pressures to jump substantially, even to dangerous levels, and is strongly not recommended.

All loads are within industry maximum average pressure guidelines of 21,500 psi, making them suitable for all guns that are in good working condition.