Author: **DYI** » Sun Apr 13, 2008 10:30 am

Are you not using a regulator?

For simplicity's sake, we'll assume a 100cc chamber, and a 1000 cc refill tank.

So, the refill tank is at 350 psig, or, in more useful units for this calculation, 25 ATM, and the chamber is at 1 ATM. When we combine the volumes together we get 1100 cc. Now, at atmospheric pressure, the gas from the tank would occupy 25 000 cc, and the gas from the chamber will still occupy 100cc, since it isn't pressurised yet. When you combine the 2 volumes together, you have 25 100 cc of gas, compressed into an 1 100 cc volume. So, the pressure of the entire system drops to

(25 100 / 1 100) = ~22.82 ATM. Repeat this for any further shots.

Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.