I was about to try the challenge until I saw this
That and I have yet to make a rifle[/quote]

it dosnt mean you can not beat it up even if you use what you got........

TO GIPPETO : it seems to me you know more than i do about barrels, what to you think about hatsan at44 long barrel ? a LW barrel cost 122 euros but right now the 70 euro for the hatsan sounds bit more affordable to me.... Anyhow if the hatsan is worse than my airsoft barrels already fully tested ( ...

The science behind an air cannon

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[quote="Brian the brain"]A QEV and a hammervalve are a good base for a semi. In a similar way I made here, but QEV and hammervalve replacing a counterbalanced hammervalve. The basic function would be the same: or he can use a push of a button and a a 2nd valve to shut the air of the pilot, instead o...

I would use a hammer valve with 40-60 bar ( witch you may achieve with a fridge compresor) min pressure and a rifled barrel, for the distance you're talking about.... As about the hammer valve "how to" built there are lots of informations on youtube with people modding thre's guns... Myself i used a...

-X3- wrote:Yep the suppressor is quite effective. About the power, the steel ball bearings (4,5g) goes right through this MDF board (18mm thick).

I shoot 6mm, 0, 86 grams trough 18 mm board

very nice looking piece you made there but by the sound it doent look pretty powerful ....it probably a good suspressor
it will fit well in a nice wood stock ....

Bravootome, what do you mean by "a flex"?



"Flex" is the electric tool with that rotary disk used to cut metal.......Flex we call it in my country but google couln't translate it...
Anyhow they dint used this stuff back on "Girandony" airgun...

well, i made my guns with only a drill and a "flex". There are already made parts just good to put them together and make a high performance airgun as for example an car fire extinguisher, with only few modifications on it it can become a great gun. My latest tests was 25 joules power with a 0.86 gr...

I know I probably missed existing info, but I looked a lot. What is the best way to keep a pen gun from firing on pulling off the chuck? Is there a way to air up a schrader valve equipped gun without mechanically depressing the stem? Simply, remove the spring from the stem, and cut away it's pin. T...

You may upload a video on youtube and post a link with the "post a replay" or "edit post" using the "youtube" button right up.
Make sure you paste the "share" link. And this way you "uploaded" a video.............

First post. I am entirely new to the hobby of "cannons" and what I have built is a "Semi truck tire bead seater." However, I will NOT be trying to write it off as a business expense on taxes. I have a few questions because I am disappointed with the performance. This air storage is all 4" schedule ...

I installed softchorono app on my phone today and did some tests : With the Qev and a 0.40 grams bb i got 790 fps. ( the gun was not fully charged, so i think it can do better) With the hammer valve( in the video) and a 0.86 grams steel bb i got 755 fps = 22.7 Jouls.....but again i think i can bring...

Sorry for posting here but, must see this " : The supreme cannon :
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I must search for more info, but can i use for the cylinder a hidraulic agriculture tractor cylinder ..? it works @200 bar....
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