My issue is how high a pressure are my loads. I go by how many reloads I get out of a case, and other non-scientific methods. Also, I'd like to see what a professional might consider "+p" or higher than normally listed in manuals but safe in modern bolt actions.
When you go off on your own and exceed published limits for a cartridge, you're playing with fire. Don't expect anyone to go out on a limb to assist you on a fool's errand. "Professionals" behave professionally and responsibly.
If you want or need more power than a cartridge loaded to its proper limits provides, go bigger.
