50mm cannon made of steel only

[Billy Bob]

Hi,
I become ready with cutting my new science video. I post it here so I doesn´t have to open a new topic.



I made it specially for spudgun fans from Canada, Great Britain , USA and Germany. I hope you like it. The action is how to safe the environmet on an alternative way in that you destroy "old" freezers. The performer spudgun you see a short time i used two calibre 25mm and 35mm.

[reaper613]

not bad, i guess im gonna have to break out my bullets with the steel core and make some new video, still thats a lot more impressive than these other guys shooting through 3/4" pliwood. very good job!

[CpTn_lAw]

yeah i agree!! this is very impressive. Powerfull, loud, not so big, but, i would like some more infos!! could you please tell us a bit more a bout it?
Air tank? Materials? valve? ammos?


Thx a lot

[Billy Bob]

The chamber is made from a Co2 fire extingusher. As ammo I use Baby batteries or Mono Batteries. Baby batteries have an higher Power you see it in the video when tehey go trough the freezer.

The spudgun is build very simple.
Here some old pictures.

[Hotwired]

I like videos with just the interesting bits left


I've never seen a fire extinguisher with a threaded connection at both ends before. Is it a special type?

[Billy Bob]

Yeah the type called: Freezers death !

No the second connection is weld and later coating soo it looks like original.

[patatoSteve]

Like the gun. How far does it shoot.

[FiveseveN]

Nice combustions indeed.
One thing puzzles me: what fuel(s) do you use? 'cause at that length to bore ratio, combustions tend to have poor efficiency.

[Billy Bob]

How far does it shoot

A few hundred meters. I never check this exactly out but I think 300- 400m with baby batteries.

I use a propan/butan burner like you have when you solder copper tubes.
That mixed the Propan/Butan with air and you have a perfect explosive micture everytime !

Here a picture but my is a little bigger.
http://www2.westfalia-versand.at/medien ... 299/65.jpg

[Billy Bob]

Hi,

[CpTn_lAw]

i see that on the picture of the extiinguisher one, you used teflon tape for the threads...Do not do that with combustion. when burnt, teflon transforms into cyanide, which you know is lethal.

[Billy Bob]

Thank you for that information. I will put that in the garbage

[Etc1990]

Holy douchefucker! That thing has hellish power,I would hate to get busted in the ass with it.

[Billy Bob]

Hi sorry for open this old topic again thats the third attempt to upload the video.

Now its succesfull uploaded.



Regards

Matthias