Energy Efficiency Formula

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Sat Apr 17, 2021 8:08 am

Hi guys, i was wondering if there was a formula for the parameters(Barrellength and Projectileweight) for the most efficiency, not the most power.
For the barrel length i figured the most effective would be that the barrel has the same volume as the volume of the released air (Volume of the Plenum).
For the ideal bb weight i havent come up with anything.

Do you guys know such a formula for the ideal barrel length of projetile weight?

Kind regards