Well back again ..

update .. played a bit with my 2 red "fire "bottles and added a 20 inch barrel .. just to see what 120 psi would do wheni fire a pencil .... Wow .. that was funny ..
so i have a pump that would go to 200 PSI .. that should do the trick for my i believe ..

now i have to find ...

Back !! some busy weeks at the office and holidays ... i manage to find 2 old tanks .. 1 and 2.25 liter in volume .. i will try to make some pics and we go from there !

Thank you Jack .. I have my bikes locked up safely .. :lol:

Brain thanx for the heads up .. I will draw up a scheme of airflow to get the picture even better and design some kind of loading mechanism .. I am also still in doubt about the barrel and the thicknes of the barrel ..

Brian .. do you ...

Jack, you did understood me very well .. i want to work with a CO2 bottle.. not sure if i will use a 12OZ ore a 20 OZ bottle .. so i think i do need a regulator . I need to draw a scetch with the air flow so i can understand a bit better where to use what part and why !

right now i am in doubt if ...

He Jack ,

thank you again for your compete answer.. most of what you say makes sense to me ,, some of it i must dive in and do my homework .. 10 ore 12 mm is not an issue for me .. hey lets go for 12 mm ..
I can work with that ! I have no idea how to reach 55 bar though .. ! i am hoping to pump ...

Hello Jack ,

Thank you for your response and help !
the 8/10/12 mm sizes tube are in Europe easy to find , the USA sizes are more difficult to get . i believe the 10 mm will be realy close to the 3/8 inch ammo i have in mind .. i think this will give me a better cleaerance than a 12mm barrel with ...

I just did a new search and i think i want to use the 3/8 caliber slingshot ammo .. this a 9.5mm diameter ammo. can i use a 10 mm Barrel with this ammo ? will that work >?

Hello Jack ,

thank you for your answer . 10 bar would be great . i can pump that easy and if that is a save figure i can work with that .
It would be great if i could get 6 ore 7 shots out of 1 tank.

I like to use a 20 OZ tank for my sniper ..allthough a 12OZ bottle would fit and look much ...

Hello fellow pressure triggers ..

I am new here and i have still tons of material to read and discover but i just wanted to say hello,

My goal is to built a sniper look alike marble shooter .. a single shot version with a top load system .
I want to use a aluminium barrel with a wall thickness ...