builder,
I have some still developing ideas sort of along that line. There would seem a nice overlap with 16 gauge low pressure loading group interests and Tom's large store of knowledge and test results. RWG, any ideas?
Doubt there would be much advantage to us individual reloaders for doing this with published, powder-makers' loading data. Those data have already been tested to perform adequately over a normal range of field temperatures.
Conversely, many of us have our experiences with nice low-pressure loads that gave bloopers on cool fall and cold winter hunts. We also have learned from such experiences that loading to somewhat higher chamber pressures (say 9K psi vs 7,5K), at nominal 75F (or whatever) temperatures, can save us these embarasments. It would sure be nice to have a better underpinning for such loading practices, as well as predictive ability to know when bloopers await us on cool and cold hunting days.
Raimey,
PV=nRT is right equation for this. Unfortunately, in real world of complex gas mixes (that do not follow perfect gas "law" all that well) and very rapidly changing Ps and Vs, things get real messy real fast. One might use modified PV=nRT to extrapolate a bit from a set of Tom A's P&V tests.
Niklas
