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**Mike Irwin** · September 11, 2000, 11:59 AM

Sensop,

The .38 Auto, or .38 ACP, was the forerunner of the .38 Super.

The cases are idential in lenght (both are longer than the 9mm Para), but the Super is loaded to MUCH higher pressures than the .38 ACP/Auto.

In the days prior to its jump in popularity in the 1970s, 9mm Luger could be kind of hard to find, so this was a very common conversion.

I've seen both .38 ACP and .38 Super brass that has been cut back to 9mm Luger spec.

------------------
Beware the man with the S&W .357 Mag.
Chances are he knows how to use it.

September 11, 2000, 11:59 AM	#11
Mike Irwin Staff Join Date: April 13, 2000 Location: Northern Virginia Posts: 41,379	Sensop, The .38 Auto, or .38 ACP, was the forerunner of the .38 Super. The cases are idential in lenght (both are longer than the 9mm Para), but the Super is loaded to MUCH higher pressures than the .38 ACP/Auto. In the days prior to its jump in popularity in the 1970s, 9mm Luger could be kind of hard to find, so this was a very common conversion. I've seen both .38 ACP and .38 Super brass that has been cut back to 9mm Luger spec. ------------------ Beware the man with the S&W .357 Mag. Chances are he knows how to use it.