The theorists question why the .38 Special shouldn't be loaded to the same pressure level as the .357 magnum. Is that what this thread is about? Sort of hard to tell. I assume this all has to do with handloading since it's in the reloading section of the forum. Again, kind of hard to tell for sure.

Rather than bringing things like metallurgy into a discussion where few, if any, have a working knowledge of the subject, why not look at all this from a simple, safe, and practical perspective?

Might be best to use published recommended load data from reputable sources for particular cartridge / firearm combinations rather than attempt to see how much abuse a gun can withstand.

I fail to see the point of this thread, if there is one.