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3/4" qev cannon ggdt fps

Posted: Sat Oct 06, 2007 1:08 pm
by ALIHISGREAT
could someone put this into ggdt form me to get the fps and range.

a 3/4" qev
1.5" 90cm long chamber
3/4" 130cm long barrel
5g paintball projectile.
about 50cc of dead space.
thanks.

Posted: Sat Oct 06, 2007 1:10 pm
by jackssmirkingrevenge
pressure, piloting method?

Posted: Sat Oct 06, 2007 1:14 pm
by ALIHISGREAT
:oops: 100 psi and 140 psi and piloted by a 1/4" blowgun :oops: i'm soo dumb

Posted: Sun Oct 07, 2007 7:52 am
by jackssmirkingrevenge
You're looking at around 530 fps for 100 psi and 595 fps for 140 psi.

Posted: Sun Oct 07, 2007 7:57 am
by windshrike
Aren't PBs closer to 3g? I'm not sure but I heard this somewhere on SF.

Posted: Sun Oct 07, 2007 8:02 am
by jackssmirkingrevenge
windshrike wrote:Aren't PBs closer to 3g? I'm not sure but I heard this somewhere on SF.
looks like you're right.

Posted: Sun Oct 07, 2007 8:08 am
by ALIHISGREAT
i saw somewhere they were 3.5g and somewhere else they were 5.5, maybe it depends on the brand, could you possibly put the same through ggdt but with a 3g paintball? thanks.

Posted: Sun Oct 07, 2007 8:21 am
by spanerman
4g by my scales....16.7mm/0.661''

Posted: Sun Oct 07, 2007 8:26 am
by jackssmirkingrevenge
for 3.5 grams it's around 600 fps for 100psi and 650 fps for 140 psi.

Posted: Sun Oct 07, 2007 8:30 am
by spanerman
^more than enough lol...and i sujest porting any paintball barrel...adds accuracy....and makes it a little less loud :)

Posted: Sun Oct 07, 2007 8:44 am
by ALIHISGREAT
jackssmirkingrevenge wrote:for 3.5 grams it's around 600 fps for 100psi and 650 fps for 140 psi.
:D 650fps :D

and i won't need proting cos i am going to make a supressor after i buy the 22mm pvc that you used for your barrel.

Posted: Sun Oct 07, 2007 8:46 am
by spanerman
ahh ok kool, that pvc wont hold the wieght of a heavy silencer..mind...you might need some supports

Posted: Sun Oct 07, 2007 8:51 am
by ALIHISGREAT
yer its going inside my 3/4" pressure rated pvc which has a id of 22mm.

Posted: Sun Oct 07, 2007 9:00 am
by ALIHISGREAT
spanerman wrote:4g by my scales....16.7mm/0.661''
i though you were using .68 paintballs...

Posted: Sun Oct 07, 2007 10:10 am
by spanerman
so did i......lol