Soooo, are you saying once you locate the general locale of the peak pressure hoop to attach the device parallel to the hoop? Yes. Hoop strain to hoop stress to pressure is the most straight forward approach to cylinderical pressure vessel, which is a fair to middlin' description of a firearm. Locating the gague around the barrel eliminates a lot of variables we really don't need. With a generally round barrel of modest taper, both internally and externally, we get an accurate enough system for our application.
Kind Regards,
Raimey
rse
