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Marble Gun

Posted: Mon Aug 03, 2009 5:01 am
by Scottaiii
Hey

This cannon has been posted on here before (I'm talking almost over 2 years ago) but it was very basic and since then it has had rebuilds, paintjobs, accessorys and lots of little adjustments.

Specs:

Type: Pneumatic
Ammo: 16mm Marbles
Pressure: 80-140psi
Configuration: Under-over
Valve: 3/4" Modified Sprinkler
Trigger: Blowgun + Safety Valve

Red+Green Dot Sight
Adjustable Bi-pod
Sling (not seen in photo's)
Gun Metal Paintjob
3/4" Stock
Ball valve breech load
16mm Copper barrel cased in 3/4" PVC

Enough talk heres the pics:

Posted: Mon Aug 03, 2009 5:52 am
by jackssmirkingrevenge
Nice, bit big on the chamber volume for my likes but very well refined :)

Is the bipod an actual Harris or a cheapo imitation?

Posted: Mon Aug 03, 2009 6:33 am
by Scottaiii
Cheapo imitation unfortunatly, but it does the job :lol:

I can't really think of much else to do with it, laser pointer maybe, and flashlight. Just to spice it up.

Posted: Mon Aug 03, 2009 6:40 am
by jackssmirkingrevenge
Scottaiii wrote:Cheapo imitation unfortunatly, but it does the job :lol:
Fortunately you mean, you don't want a bipod that costs more than your launcher :)
I can't really think of much else to do with it
Integrally suppressed barrel of course ;)

Posted: Mon Aug 03, 2009 7:09 am
by SP00K
Very well constructed. How long did it take you to build?

Posted: Tue Aug 04, 2009 4:38 am
by Scottaiii
SP00K wrote:Very well constructed. How long did it take you to build?
Overall it took me about 6 months of which to build, altho that was not 6 months straight, more or less when i had time. It had been sitting in the shed for the last 10 or so months, with the occasional use to impress the friends :wink: Then i decided to spice it up from the boring PVC look.
Fortunately you mean, you don't want a bipod that costs more than your launcher :)
I would not bet on that ;) It Cost me over $150AUD to build + more for mess-ups and just trying things out.
Integrally suppressed barrel of course ;)
Well yes that would not be such a bad idea, I've built an attachable silencer before, but internal would be nice. But how much power will i really loose if i was to do that, say 16mm barrel, cased in 1inch silencer?

Thanks.

- Scott.

Posted: Tue Aug 04, 2009 4:44 am
by jackssmirkingrevenge
If you port say the last 3 inches of the barrel you shouldn't really notice a decrease in power without a chronograph.

Posted: Tue Aug 04, 2009 5:17 am
by Scottaiii
Oh alright then, well i might make the silencer from the end of the chamber to the en of the barrell. Ill have to work on it. Thanks.

Posted: Tue Aug 04, 2009 8:22 am
by Mitchza89
Fantastic Job mate, I love it.

Keep up the great work!

Posted: Fri Aug 07, 2009 11:09 pm
by PureMarksman
Wow! This is amazing, by-far one of the best, most professional and most deadly looking rifle designs with out an actual stock.
This is just awesome; this is definitely a design Ill be looking into when I get around to building my first Pneumatic :D

Again Great Job keep up the good work.

Posted: Sun Aug 16, 2009 8:02 pm
by Mr.Sandman
PureMarksman wrote:Wow! This is amazing, by-far one of the best, most professional and most deadly looking rifle designs with out an actual stock.
This is just awesome; this is definitely a design Ill be looking into when I get around to building my first Pneumatic :D

Again Great Job keep up the good work.
You think this is amazing, look at xm2 or the u2 piston rifle. They are both very nice. Overall this is a pretty nice gun though.

Posted: Thu Aug 27, 2009 8:57 pm
by jhalek90
Looks very very good.

My only suggestion, all Pneumatic PVC guns NEED pressure gauge. for safety. I've show my cannon a few times just to have 10-15 psi of "left over" pressure.... stick a new piece of ammo in.... and accidentally fire...

So, over all Great looking gun. You juts need a gauge!

Posted: Thu Aug 27, 2009 9:20 pm
by covey12
im guessing the ballvalve is a saftey?

Posted: Thu Aug 27, 2009 9:25 pm
by jmadden91
No its a loading mechanism. He states in his post that it has a safety, so im assuming it doubles as both.