SpudFiles

Hi Spudders,

first of all i want to show myself to you all.

I'm 17 year's old from Germany (Mainz)

So pls don't hunt me for my baaaaaaad primaryschoolenglish



Soooooo and now what youre all waiting for.... My Airgun


Parts i used are:

Airchamber: 3/4" steel parts
Piston: Pullback-Piston
Barrel: 15mm OD rifled copperbarrel housed in a 1/2" steelpipe
Rail and mounts: Stolen from my MP-7 / 4x30 sportscope

Operating pressure is around 11 bars when i have my new pump it will raise to 50 bars *i will get the wohle world muhahahaha*


So and now a few pics of the whole gun and the parts.....

Nicely done. How are you sealing the trigger assembly in the valve? A o-ring?

Welcome to Spudfiles.

Very nice, you will be happy with the power difference when you take it up to higher pressure, though it will be loud! Some pictures of the piston assembly would be welcome, as I imagine it is made of standard parts and of interest to anyone who might want to replicate the design

How did you rifle the barrel and is it effective? Copper isn't too hard a material, even compared to lead.

Hi


I'll take a picture when my dad is back from soapboxderby.... He tooks my tools whit


The barrel is rifled with a normal riflingtool anyone is using in this forum and its verry effective compared to a normal barrel...

To the loudnes.... Its VERY loud at 11 bars i should wear ear protection at higher pressure...


Edit: found a pipewrench and took photos

Lovely, good to see people are making QDVs using over-the-shelf parts

FreaK_with_GuN wrote:Its VERY loud at 11 bars i should wear ear protection at higher pressure...

Schalldämpfer

Hehe

i had that idea too a few minutes ago

Im going to take a 0.5 liter mezzomix thickwalled bottle that fits perfect on my barrel

FreaK_with_GuN wrote:Im going to take a 0.5 liter mezzomix thickwalled bottle that fits perfect on my barrel

2 or 3 litre bottle would be better, remember suppressors are like engines - there is no substitute for cubic capacity

Hmmmmmmmm we have no 2 lite bottles in germany so ill try a 1.5..... testing goes over studdying

Here's another option, port the end of the barrel and fit a sleeve along the whole length of it:



Separating the sleeve into chambers but adding baffles will make it more effective.

An idea is growing up in my head....... taking 1" parts and so on......

Hi


my friends and me have build the airgun new with new barrel, silencer and piston....


Gun complete
http://www.abload.de/image.php?img=dsc_0717agtm.jpg
Piston with spring
http://www.abload.de/image.php?img=dsc_07189ijh.jpg