Without reading the entire thread
I think the thickness of the brass has plenty to do with the PSI/CUP a particular handgun will handle, be it a revolver or an auto. If the Super reamer was'nt so darn expensive, and I allready got enough guns to shoot the Super, and a bunch more to shoot the Special. I'd have tried this by now. (not to mention the guys reamin the 940 to Super, and I'm pretty darn sure its the same cylinder as a 640, matter of fact they're interchangeable)
Anyway.....
Heres some "major" data for the Super....... I've seen some that make this look conservative. THIS stuff I sure wold'nt want to run out an older 38 special....
http://www.k8nd.com/documents/hl38sup.pdf