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.38-45 ACP Load Data

Alternative names: .38-45 Auto, .38/45, .38-.45, .38-45 Clerke

Our load data for caliber .38-45 ACP covers 252 bullets from 25 manufacturers and a total of 15876 load recipes.

The .38-45 ACP cartridge is a modified version of the .45 ACP cartridge, which was developed by John Browning in 1904. The .38-45 ACP was created by necking down the .45 ACP case to accept a .357 inch (9.1 mm) bullet.The .38-45 ACP cartridge was developed in the early 1900s as an experimental round for the US military. It was intended to be a replacement for the .38 Long Colt cartridge, which was deemed inadequate in combat.The .38-45 ACP cartridge was tested extensively, but it was ultimately rejected in favor of the .45 ACP cartridge, which was considered to be more reliable and effective. Today, the .38-45 ACP cartridge is considered to be a historical curiosity and is not commonly used or available.

Caliber Statistics

Standard / Datasheet

Primer Size

Small Pistol (SP)

Max. Case Length

22 Grains of Water

Bullet / Barrel Diameter

0.357'' | 9.07 mm

Max. Case Length

0.898'' | 22.81 mm

Max. Cartridge Length / OAL

1.248'' | 31.7 mm

Max. Standardized Pressure:

34084 psi | 2350 bar

XXL ID

CID_596

.38-45 ACP load data available is with the following bullets:

(most popular first)

Filter by Bullet Weight (Grains)
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