Originally Posted by Etoh
Originally Posted by Jordan Smith
Originally Posted by Etoh
Originally Posted by MikeS
As mathman says the pressure works over a period of time to accelerate the bullet. A short duration/peak of pressure may not do as much work as a lower peak but longer duration.

Explanation ignores the ever increasing volume of the gas mixture, and violates the General gas law. PV/T=P'V'/T'
Not if you consider the increasing number of gas molecules that occupy the volume. PV/(nT) = P’V’/(n’T’)

The Mole ratio stays the same
I haven’t looked deeply into the specific “burn” rates, but the deflagration process involves varying time dependence of the phase change of molecules from solid to gas.