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what size?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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what size?

Unread postAuthor: spud man » Tue Aug 01, 2006 4:34 pm

What size barrel would be better for a peunmatic spud gun with a 4" chamber 2"or 2.5". What size barrle dose pop can's fit in.
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Unread postAuthor: noname » Tue Aug 01, 2006 5:24 pm

They fit in 3" I think. You can get some small cans in 2.5," like Red Bull.
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Unread postAuthor: Velocity » Tue Aug 01, 2006 8:01 pm

2.5" SDR-21 is very rare, but is the perfect fit for soda cans (IIRC)
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Unread postAuthor: boilingleadbath » Tue Aug 01, 2006 8:22 pm

Normal soda cans are 2.6", within a couple thousandths.

Satisfactory barrels can be made from sleaving 3" sch 40 inside 3" sch 40, which I calculate would give an inside diameter of 2.61".
Alternativly, you can find some 2.5" SDR 26; inside diameter is 2.635"
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