Low Pressure

[snoopay700]

Assuming negligible pressure head losses, and a constant temperature transitions (both of which are probably poor assumptions),

P1V1=P2V2

where Pn describes the pressure at the nth state and Vn describes the Volume at the nth state. This should be an effective equation for quasi equilibrium dry air processes that are well clear of phase changes, use with caution.

Awesome, i may have been doing it wrong, i'll try that formula for a rough estimate and let you know what i come up with.

Edit:

I did it a bit different, i divided the volume of the barrel by the volume of the dump chamber and sadly came up with the same number, so i was doing it right, which is bad news for me. Oh well, i'll figure something out, i just didn't want a big dump chamber.

[snoopay700]

Ok, i know i'm probably being a huge bother, what with double posting and what not, but those low pressure markers that have an output of 35-45 psi, is that at the end of a 10 inch barrel, or is it more around 30 psi halfway through and 20 psi toward the end? Or is that too low? Any help on this subject would be extremely helpful.