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chamber volume to barrel volume

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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chamber volume to barrel volume

Unread postAuthor: RAYZOR51 » Mon Mar 17, 2014 5:06 am

I have a 600mm barrel with an id of 8mm which works out to 30171 cubic millimetres.

Firing chamber is 100mm id of 12mm = 15085 cubic millimetres.

This is approx .5:1 (if my figures are right ) :?:

Would someone please check these figures for me.

Firing 7.5mm bb's @ 150 psi bolt action single shot.

all advice readily received. :bounce:
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Re: chamber volume to barrel volume

Unread postAuthor: jackssmirkingrevenge » Sat Mar 22, 2014 4:16 am

cubic millimetres


30.17cc vs 11.31cc

That's not much for 150 psi
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