Does anybody know what this typically runs or how to measure it? If you've got say 8,000 psi on ignition, what does it drop to at the muzzle? Can this be calculated if you know the max chamber pressure and barrel volume? If so would you have to know exactly where the shot charge is in the barrel when max pressure is reached? i.e. a few inches either way should make a large relative difference in the calculation. I don't know if the usual strain gage setup would work as the radial pressure from the shot hitting the chokes would tend to skew results. Thanks for any help. John C.
