sdr=sewer drain

Post questions and info about safe and unsafe materials that can be or should not be used to construct a launcher. Also post things about different universal accessories for your cannon (breech loader, muzzle break, etc.)

Postby bigfoot42 » Sat Aug 02, 2003 8:24 pm

i have 4" sdr pipe that is rated at 200 psi. would it be safe to use that as a combustion or pneumatic chamber without having to sleeve it? It is just about as thick as reagular 4" pipe unlike the difference in the 2" pipes
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