William,
So when I asked how you calibrated your system the response that you didn't calibrate was misleading. You at least checked your calibration to known pressures provided by a manufacturer so you have some verification of the actual values over that part of the pressure range your system will encounter. If you haven't seen an industry standard gun, you might find that interesting. Looks nothing like a firearm. I would be careful with providing data to others who might rely upon the data for safety - you could be exposed to significant liability.
