SpudFiles

Hello guys, this is my first gun and first post.
Nothing new - some china QEV,galvanized pipe as chamber,16mm ID barrel and 100-120 psi operating pressure.(takes some time with my puny shock pump)
It can shot 2 or 3 times before pressure drops to somewhere about "hey-its-not-shootin-its-just-farting"
I use dart as projectile(nothing special here - just nail, paper amd some glue)
Here some shooting video and damage
[youtube][/youtube]

PS.And sorry for my bad engrish, i am half chinese\half russian

Not bad

By simply adding a slide valve as a pilot and a small sub chamber you will make it much more efficient: http://www.spudfiles.com/forums/semi-au ... 23626.html

I would suggest getting your hands on a track pump, something like this:







That will let you get past 200 psi with much more ease than what you're struggling with to achieve with the shock pump.

Alternatively, a cheaper and less tiring solution is simply to use a fridge compressor, which gives you upwards of 500 psi for no effort.

Thanks for advices!)
I already buyed slide valve from ebay but recieved it damaged.It leak on any position
I was just planning to buy a track pump,but cannot decide which is better serfas fmp 500 or 3 stage topeak joeblow?

I have no experience with either pump.

Sure you don't want to try a fridgy first? Don't you huh? ;D

jackssmirkingrevenge wrote:Sure you don't want to try a fridgy first? Don't you huh? ;D

I too say get a fridge much better and most of the time its free all you need is a pressure gauge and you already have on on your shock pump.

jackssmirkingrevenge wrote:I have no experience with either pump.

Sure you don't want to try a fridgy first? Don't you huh? ;D

Sure fridgy is a good choice,but i do not have acces to it right now.(tryed to ask friends for broken fridges and some scrap yards,still no luck)
It is good for indoors but most of the time i shooting outdors (i have some small forest near my home)so i need mobile air source

In that case, a track pump is your best bet.

Unless you're feeling creative: http://www.spudfiles.com/forums/easy-st ... 13277.html

jackssmirkingrevenge wrote:Alternatively, a cheaper and less tiring solution is simply to use a fridge compressor, which gives you upwards of 500 psi for no effort.

Mine reaches 1500 psi