Thank you for the reply, MadMax. I really enjoy reading over some of your older concepts, and only hope I can do the same, as I am still learning. This kinda stuff is what gets me interested in the game. Maybe you can relate with me.
I want to support my ideas and predictions with facts, and values. However, lacking supplies is the biggest issue. I can't really measure anything, so this is a project of estimation, and reason.
I caught an idea while I was reading the post. I'm still a little novice to the workings of the airsoft gun, so correct me, if I'm wrong. You say that you can't know the breech pressure, at any given point. But, what if we did this:
You see, if you put air holes, allowing the air to escape in the cylinder, the acceleration, and velocity would remain precise, because we would know that the pressure would be atmospheric. So, it would be high school physics, until the piston head passed the holes. In which case, the air would be cut off, and compression would occur. From that second, we could find the velocity, and take it from there.
Couldn't we? Please fix any holes in my quite disorganized reasoning.
//Tendril