Thanks mack_silent,I had a theory that a AEG would fire
between 80-120 psi,as my gbb uses propane at 100psi.
I had planed to use regulator between the 45g tank and
the marker.I was trying to get a base figure on a AEG to
to set my primary pressure.At present,my 45g tank will
fire 120 rounds of 43cal. rubber rounds.Firing 6mm will
require a fraction of the pressure to around 300 rounds.
I will be using the M4 marker in the pic for the testing.