SpudFiles

Is the spring really necessary btw?

i think its brilliant
excellent work i cant wait till its finished

The spring keeps the piston seated until the pressure builds behind it in the pilot area I believe jack.

I can see how your going to attach the stock easily now,I to am wondering if at say 300psi if your piston seal will hold up but you do have a few spare ones hahaha .

One time when I'm Brisbane way matey I'll bring my Chrono along and we can chrono this thing for its velocity.Sound good to you?

Jack, I havn't tried it without the spring but I know she works perfect with it so why fix whats not broken?

Thanks alot U2, She should be completed real soon. I welded up a part of the detatchable stock before.

Damn straight RNA, sounds like a sh!t hot idea. I dunno what speed it will shoot but with 6mm lead balls at 300psi, im thinking 600fps or so but even if I can get close to that, it'll put a giant smile on my face .

Cheers lads.

If I were you i'd remove the spring (and replace it with a thick rubber washer as a bumper) and see if you can still fill without it - it should increase performance on firing.

Oh really? Wowie...How does that work? I'm guessing the piston just shoots back quicker.

That's it, the less resistance the piston meets moving backwards, the quicker it will move and therefore the faster your valve opens.

Where/how did you get that Shrader into that fitting?

Homemade mate I just got a rubber tubeless tire valve, sanded it down so it was like a plug, drilled out the hole in that 1/2 brass fitting and just pushed it in. It's completely air tight at 360psi (havn't tried any further) so I'm happy.

wat is a shock pump ?

It's a small high pressure pump. Well done on kicking up a seriously old topic .