umm... if you look at the graphs at burntlatke you can answer your own question.

but i think he calls his preffered ratios the most effiecient and not necessarily the most powerful.

different barrel and chamber diameters and launcher configuration can also make a difference too.

Thank you ...

I have a question about C:B ratios for metered propane combustions canons. I know from reading the test results at http://www.burntlatke.com that the optimal C:B ratio for a fixed size combustion chamber is ~.7 or .8 :1. My question is, If you added a larger chamber to a gun that was already at that ...