Actually, the .38 ACP has the exact same case dimensions as the .38 Super...the Super is loaded to much higher pressures, and boxes of .38 Super ammo are clearly labeled that it's not to be used in .38 Auto weapons. Traditionally, .38 Super cases were nickel plated to help distinguish them, but that practice has somewhat fallen by the wayside.
I hope you aren’t trying to tell me it’s a survival cartridge.