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Poor Man's Chrono

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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Poor Man's Chrono

Unread postAuthor: sagthegreat » Mon May 20, 2013 7:12 pm

I was wondering if someone would chronograph a 4.5mm pellet going through the bottom edge of a coca cola can, as I dont have a chronograph and am trying to gauge the power of my cannon
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Unread postAuthor: dart guy » Mon May 20, 2013 7:21 pm

i advise testing the gun on a block of wood with 3-6 layers of cardboard in front so that it is hard to get a richocete and if you use pine for the backing almost everyone has pine and this may allow you to compar the gun to a diferent one therefor geting a relitive power
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Re: Poor Man's Chrono

Unread postAuthor: jrrdw » Mon May 20, 2013 8:56 pm

sagthegreat wrote:I was wondering if someone would chronograph a 4.5mm pellet going through the bottom edge of a coca cola can, as I dont have a chronograph and am trying to gauge the power of my cannon


"Box-of-truth" Search for it.
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Unread postAuthor: Kilash » Mon May 20, 2013 9:30 pm

Wasn't there a post about using a sound recording of your gun firing and hitting the target to calculate the velocity?
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