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PAC 120 Bar - 1700 PSI

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: jackssmirkingrevenge » Thu Sep 29, 2011 3:42 am

[youtube]http://www.youtube.com/watch?v=cNr5agpfSuA[/youtube]

[youtube]http://www.youtube.com/watch?v=pYgMKFBXHSE[/youtube]

Impressive!
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Unread postAuthor: Petitlu » Thu Sep 29, 2011 3:48 am

Thank you!


I do not manage to put the videos…

Image


Image

Soon I will make shootings with 200 bar - 3000psi- ! :D
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Unread postAuthor: jackssmirkingrevenge » Thu Sep 29, 2011 4:12 am

Very nice, is that the barrel from a muzzle loader/ black powder rifle?
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Unread postAuthor: Petitlu » Thu Sep 29, 2011 4:29 am

yes, barrel PN

I bought the barril with loading by the mouth at Dixiegun


There it is a shooting without shear disc

[youtube]http://www.youtube.com/watch?v=PPHcCoLpNEk[/youtube]


[youtube]http://www.youtube.com/watch?v=vRO1KlOR0AA[/youtube]
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Unread postAuthor: jackssmirkingrevenge » Sat Oct 01, 2011 1:00 pm

Petitlu wrote:I bought the barril with loading by the mouth at Dixiegun


Brilliant, we've often talked about using black powder barrels but I don't think anyone has ever implemented it before. Also being nice and long it takes full advantage of your large chamber.

Have you done any longer range accuracy tests shooting from distances of say 50 and 100 metres?

Did you notice a significant power drop when shooting without the disque de rupture?
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Unread postAuthor: Petitlu » Sat Oct 01, 2011 4:59 pm

I am modifying my PAC (balance of the masses) in order to be able to draw with long distances to measure the precision.
Without the shear disc, the power is divided by 2…
Highly shootings with 200 bar!
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Unread postAuthor: jackssmirkingrevenge » Sat Oct 01, 2011 5:38 pm

You should try shooting resting the rifle on a bench, or in the prone position with a bipod or similar, to really get the most out of it in terms of accuracy.

Petitlu wrote:Highly shootings with 200 bar!


Have you taken it to the full 3000 psi?

:shock:

I hope you're using hearing protection!
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Unread postAuthor: Gun Freak » Sat Oct 01, 2011 6:04 pm

Your gun is dying for a breech load!
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Unread postAuthor: Petitlu » Sun Oct 02, 2011 4:12 am

my bottles of air are empty for the moment, not shooting with 3000psi.
In more the PAC is dismounted to put it in Bullpub.

"Your gun is dying for a breech load!"
Sorry, I dont not understand
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Unread postAuthor: Crna Legija » Sun Oct 02, 2011 4:26 am

Petitlu wrote:"Your gun is dying for a breech load!"
Sorry, I dont not understand



Its when you load ammo from the back of the barrel.
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Unread postAuthor: jackssmirkingrevenge » Sun Oct 02, 2011 4:29 am

Petitlu wrote:"Your gun is dying for a breech load!"
Sorry, I dont not understand


He means you should put the projectile in the "culasse", not the "bouche", make it sort of "a culasse mobil"
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Unread postAuthor: Petitlu » Sun Oct 02, 2011 4:42 am

the gun is threaded in 5/8 UNF instead of the room and it is made to be charged by the mouth…
the problem with the cylinder head it is the sealing with 3000psi.
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Unread postAuthor: LeMaudit » Sun Oct 02, 2011 5:41 am

"Your gun is dying for a breech load!"
"Ton fusil meure d'envie de se faire charger par la culasse."
;-)

You could make a breech load mechanism that is screwed to the barrel, without the need to modify it.

Tu pourrais faire un système de chargement par la culasse qui se visse sur le canon, sans avoir besoin de le modifier.
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Unread postAuthor: Petitlu » Sun Oct 02, 2011 5:47 am

the barril is threaded inside!
it would be necessary to machine outside to make a threading
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Unread postAuthor: LeMaudit » Sun Oct 02, 2011 5:56 am

Ah, right. And the threads are flush with the hole? There's no shoulder? Care for a close-up photograph? I'm sure people here would provide plenty of ideas...

Ah d'accord. Et les filets sont au même niveau que le trou? Il n'y a pas d'épaulement? Pourrais-tu montrer une photo de détail? Je suis sur que les gens ici pourraient te donner plein d'idées...
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