If you have a wattmeter, you can check for system efficiency, which is usually related to your shimming unless something else is fucked like a bad air seal, binding piston, etc. Ideal setups are 20-25% efficient. Most stock guns are closer to 10-15% efficient.
Output/Input in Watts
Output = Kinetic Energy in Joules x Rate of Fire in Rounds per Second
Input = Voltage x Current
|