Quote:
Originally Posted by DWalt
The .38 Super cartridge has a fairly convoluted history regarding its power level vs. the .38 ACP. It's a little too long to get into here, but you can search for it. Part of the problem has been that the earliest Colt autopistols chambered the .38 ACP and its lookalike the .38 Super. However, higher pressure loads can irreparably damage those pistols.
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So true. The 38 ACP was a low pressure pistol cartridge. When Colt put it in the 1911, a far more robust pistol, they simply hot rodded the cartridge and gave it a new name. Of course, Colt wasn't the only one to do something like that. S&W hot rodded the old 38 Special and named it .38-44 HD.