Saw something wierd today.
Early this morning when it was pretty chilly and damp, I noticed a spray mist coming out of the barrel with every shot.
Now is this caused by the tempreture of the air exiting the barrel against the cooler air?
Or is it the blast of air compressing the surrounding air into water droplets?
Doesn't last long - maybe a couple of milliseconds, but definately viewable through the scope if shooting into a dark area.
i have seen the same thing with my gun i think that the air is hotter when it comes out the barrel.
I agree with Avion, the air exiting the barrel will be colder than the surrounding air, so the combination of the drop in temperature and the increase in pressure of the surrounding air could cause the mist. I have noticed this with both my CO2 and PCP guns.