The .357 Auto Magnum is a wildcat cartridge that is derived from the .357 Magnum. It is essentially a .357 Magnum cartridge that has been necked down to accept a 9mm bullet. This cartridge was designed to be used in a semi-automatic pistol, but it is not a standardized cartridge and is not commonly produced by ammunition manufacturers.The .357 Auto Magnum has similar ballistics to the .357 Magnum cartridge, but with a smaller bullet diameter. It is not widely used or recognized, and its use may be limited due to the lack of standardized production and availability of ammunition.
- Bullet Weight (gr) ->0-5050-7575-100100-150150-200200-300>300
The following table indicates for this caliber and various bullet weight ranges (in grains) which powders are suitable (👍) and popular among our reloading community (👍👍). This might evolve over time as more community members share their loads and as we accumulate more calculations and tests with our balistics calculator.
Weight vs. Velocity - Suitable Bullets for this Caliber
You need to get an access license to view this chart. See an example with the following caliber: .22 Nosler
Barrel Length Variation vs. Velocity - by Bullet Weight
.357 Auto Magnum load data available is with the following bullets:
(most popular first)
