I read on the wiki of the BurntLatke study of C:B ratios. Using the second graph I calculated this.
With a 7" chamber of 2" sch40 PVC the inner volume would be roughly 27.489ci
A 36" barrel of 1.5" PVC would give me a volume of 73.289ci which makes a C:B ratio of 0.375, and according to the graph i should expect something around 400 FPS (which is my goal).
My question is did I read the graph correctly and Is this a reasonable expectation? I assume the study used metered propane and a standard potato, but did I miss something?
C:B ratio
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jackssmirkingrevenge
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hectmarr wrote:You have to make many weapons, because this field is long and short life
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Cpt Obvious
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ah, thank you once again, just what i was looking for.