New spud is it worthy?

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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9mmguy
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Tell me what you think!
i have been working on this for a bit now the valve body is brass and is a piston valve.have had it up to 300psi with my fridgy fireing marble size ammo does vary good have more thing to do to it.

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warhead052
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Wow, nice! What sort of valve is the trigger?
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9mmguy
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I work on semi truck it is the drain for the air tanks to get the water out of the system works good on my gun
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jackssmirkingrevenge
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Nice to see some metal, love the look :D now let's see it in action!
hectmarr wrote:You have to make many weapons, because this field is long and short life
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9mmguy
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I will have time to do video Friday will get it up as I do it need to find ammo that is more even marbles I have are random in size see what I can come up with at work.
All comments are welcome
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9mmguy
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Shooting with a Marble @ 300psi


Shooting with a marble @ 300psi


Shooting with a AA battery @ 350psi


Shooting with a AA battery @400psi


Shooting with a AA battery @400psi
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9mmguy
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1/2 Inch Concrete board
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MRR
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I have watched all the videos and the shots seem somewhat inconsistent in power. Do you use some kind of wadding before you load the projectile (you said that the size of the marbles vary)?
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evanmcorleytv
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MRR wrote:I have watched all the videos and the shots seem somewhat inconsistent in power. Do you use some kind of wadding before you load the projectile (you said that the size of the marbles vary)?
Yeah.. I noticed, and wondered that too.. Do you use wadding for the marbles, and batteries?
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9mmguy
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No I don't put any wadding in gut the marble have been making my own ammo just trying to get some fires in test the piston
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9mmguy
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New Ammo

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killerbanjo
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Wow nice, i like the look of the long slug ones :P
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9mmguy
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Only thing is 52grams 32grams on the small one
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9mmguy
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Have made some all the way down to 10grams even drilled out the rear off them to cut the grams down
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jackssmirkingrevenge
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9mmguy wrote:Have made some all the way down to 10grams even drilled out the rear off them to cut the grams down
... and to keep them stable in flight ;) looking forward to seeing these in action.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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