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Could I Please Get A GGDT Read Out?

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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Could I Please Get A GGDT Read Out?

Unread postAuthor: rna_duelers » Mon Aug 14, 2006 6:01 am

I was wondering if someone could please use their GGTD to have a fps reading?The specs are as follows.

1/2 barrel at 90cm.
1inch modded sprinkler valve.
2inch chammber at 30cm.
8gram projectile.
130psi.
60ml dead space(estimation).

Thank you.
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Unread postAuthor: killagorrila99 » Mon Aug 14, 2006 6:15 am

do it yourself u lazy bum!
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Unread postAuthor: rna_duelers » Mon Aug 14, 2006 6:17 am

I cant,the GGTD doesnt work on my accient machine.
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Unread postAuthor: LucyInTheSky » Mon Aug 14, 2006 6:26 am

440fps

And this message is not too short any more.
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Unread postAuthor: rna_duelers » Mon Aug 14, 2006 6:29 am

440fps...that sucks ass!lol any ideas on how to get the fps up?
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Unread postAuthor: LucyInTheSky » Mon Aug 14, 2006 6:53 am

A 2m Barrel would shoot at about 571fps.
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Unread postAuthor: rna_duelers » Tue Aug 15, 2006 6:13 am

But thats 2m...lol..ohh well the 440fps will have to do,not very sniper like if its only 440fps :cry: :cry:
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Unread postAuthor: LucyInTheSky » Tue Aug 15, 2006 9:14 am

Its still a lot considering its home made. Did you think your gonna get mach3 or something?
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Unread postAuthor: rna_duelers » Wed Aug 16, 2006 12:57 am

Nah,but i was hoping for atleast 550fps and after i saw that pneumatic called the gas sampling gun getting to 800fps(kinda copeid design) i was hoping my cannon would get to atleast 550fps.
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