EDIT: My Holy Grail is a Semi-Auto piston valved all copper rifle capable of 3 or 4 shots without having to be connected to a constant air source or where I have to wear a backpack for it. That would actually be pretty simple. We've been discussing such a thing in the "mini mortar" thread, although...

Wow Rag, your head can hardly fit through the door. Oh come on, is sarcasm completely lost on some people? In this forum, small type tends to relate to something that isn't being said seriously, and I even resorted to a little ;P smiley to make sure I got my message across. I was led to believe tha...

My Holy Grail is a Semi-Auto piston valved all copper rifle capable of 3 or 4 shots without having to be connected to a constant air source or where I have to wear a backpack for it.

..And a merry new year to you all..

Anyone have any new year resolutions?
Apparantly, 9 out of 10 new years resolutions fail miserably, so make them reasonable.

Why would it fire with more power?
Is it because of the density of the gasses?
In that case, why not just use Helium?
Oxygen and Acetylene, I wouldn't.

Edit: Beaten, doubly.

Ragnarok wrote:but then no-one else would be in with a chance... ;P

Wow Rag, your head can hardly fit through the door.

ALIHISGREAT wrote:another point is that piston valves often look better and cleaner than qevs

Depending on how well they're made, if it's a ghetto Piston, then it won't look half as good as a QEV.
QEV's come all nice and shiny, Piston valves usually come across as grotty, bodged pieces of work.

Yeah, I just love the sound of the wood splitting and how it almost sounds like a waterballoon exploding. My old camera had appalling sound too, it wouldn't pick up silence without a fuzz noise, bloody thing. Thanks for all the comments, I'm looking forward to seeing what other people have done and ...

QEV wins for reliability and Piston wins for self satisfaction.. Although, over in the Uk, a 1" QEV will cost £125 ($250), but a 3/4" is almost dirt cheap. I'd go with the QEV if you havn't built a piston before and don't know much about the inner workings of one, but then again, I'd be tempted towa...

It was a solid 1" thick board.

@Hotwired, indeed you can make things look larger or smaller as you please depending on the distance of the camera from whats going on.
But why would I have need to do that?

I'm entering my Tennis Ball Launcher firing an Oasis bottle at 90psi and blasting it's way through 1" of plywood. It was this, or an Oasis bottle completely disintegrating after smashing into a tree at 90psi.

[youtube][/youtube]

My god, imagine a 150,000psi gun with a burst disc made from 1" titanium sheeting, I'm sure that you could fire marbles at near the speed of light. lol

I'm ENTJ
Extraverted 33
Intuitive 38
Thinking 75
Judging 1

I do love public speaking so this is me all over.

Oh cool, why can I never find any of this stuff on ebay.

Jesus, that thing is huge, what will you be doing with it?