.38-45 ACP

Reloading data for .38-45 ACP cartridges and specifications for cases and loads in this caliber.
Product number: CID_596
Load data for caliber ".38-45 ACP"
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.

You find .38-45 ACP with all common powders and bullets by clicking the 'Loads in this caliber' button above.

Technical Specifications (based on the respective safety standard - see more details in tab 'Datasheet' if available)

Caliber: .38-45 ACP
Cartridge Type: Pistol/Revolver
Bullet Diameter: 0.357 '' | 9.07 mm
Primer Size: Small Pistol (SP)
Max. Case Length (l3):0.9'' | 22.81 mm
Max .Cartridge Length / OAL:1.25'' | 31.7 mm
Maximum Standardized Pressure:34084.4 psi | 2350 bar
The Commission internationale permanente pour l'épreuve des armes à feu portatives ("Permanent International Commission for the Proof of Small Arms" – commonly abbreviated as C.I.P.) is an international organisation which sets standards for safety testing of firearms. (The word portatives ("portable") in the name refers to the fact the C.I.P. tests small arms almost exclusively; it is ordinarily omitted from the English translation of the name.) As of 2015, its members are the national governments of 14 countries, of which 11 are European Union member states. The C.I.P. safeguards that all firearms and ammunition sold to civilian purchasers in member states are safe for the users.
To achieve this, all such firearms are first proof tested at C.I.P. accredited Proof Houses. The same applies for cartridges; at regular intervals, cartridges are tested against the C.I.P. pressure specifications at the ammunition manufacturing plants and at C.I.P. accredited Proof Houses.

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