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NEW Spudfiles Challenge!!!!!!!

A place to ask general spud cannon related questions.
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Unread postAuthor: jackssmirkingrevenge » Sun Oct 14, 2007 9:31 am

We get cartons, not jugs, count me out :(
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Unread postAuthor: Skywalker » Sun Oct 14, 2007 10:15 am

ALrighty! I'm going to cast some lead into an old 12g CO2 cartridge and stuff it in the good ol' Negotiator 3! Maybe I will try a large bolt in my combustion gun as well.
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Unread postAuthor: strangers » Sun Oct 14, 2007 10:42 am

If I can fix my little pneumatic I'll try and see how many it can shoot through.
It's too cold outside for my ghetto combustion gun, so I can't use it. :(
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Unread postAuthor: mtronic » Sun Oct 14, 2007 4:33 pm

We get cartons, not jugs, count me out Sad
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I think it would be slightly un fair comparing say a sprinkler valve marble gun to some piston cannon of JSR :lol: plus it would be a b*tch for you, you'd have steal a milk truck just to get enough bottles :lol:
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Unread postAuthor: veginator » Sun Oct 14, 2007 4:37 pm

mtronic wrote:
We get cartons, not jugs, count me out Sad
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I think it would be slightly un fair comparing say a sprinkler valve marble gun to some piston cannon of JSR :lol: plus it would be a b*tch for you, you'd have steal a milk truck just to get enough bottles :lol:

You still have milk trucks to deliver your milk?
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Unread postAuthor: mtronic » Sun Oct 14, 2007 4:42 pm

lol no :( I wish, then i wouldn't need to go to the supermarket. I drink milk like its going out of fashion.
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Unread postAuthor: DYI » Sun Oct 14, 2007 5:35 pm

I just lugged out my HPHH and attached the 12' barrel. This shot was at 450 psi with a 150 gram steel dart. Muzzle velocity was between 450fps and 530 fps, depending on how fast I opened the valve.

JSR: the backstop was a piece of 1-1/4" plywood, with an air gap behind it, and then a sheet of 3/4" plywood backed by 1/4" plate steel. Happy now?

[youtube]http://www.youtube.com/watch?v=oz9aqKM5Z8k[/youtube]
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Unread postAuthor: Novacastrian » Sun Oct 14, 2007 6:03 pm

Me thinks you need about 100 more bottles DYI, nice :D
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Unread postAuthor: tylerthetatertosser » Sun Oct 14, 2007 6:18 pm

[youtube]http://www.youtube.com/watch?v=nc2NAJreziE[/youtube]

This is my video of shooting 3 milk jugs.
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Unread postAuthor: Novacastrian » Sun Oct 14, 2007 6:23 pm

That's a nice gun there Tyler- what pressure were those shots taken at?
Pity about the way the nail entered the last jug, would of gone straight through i think :D
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Unread postAuthor: DYI » Sun Oct 14, 2007 6:23 pm

@Nova: yeah, I just kind of threw together what I had lying around. The thick plywood seemed to do a good job of stopping it though. I think that the non-discarding sabot considerably lessened performance, but it still had at least 1000 ft/lbs of muzzle energy. Pretty good for a simple ball valve gun.

Now, if only the burst disk cannon would work...
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Unread postAuthor: SpudBlaster15 » Sun Oct 14, 2007 7:01 pm

This seems like an interesting challenge. As soon as I get my hybrid's union to seal with 4 soda can burst disks, I will shoot some milk jugs at a 7x mix. A dart should penetrate at least 5 of the large 4 liter jugs.

FWIW, 2" of penetration into water is roughly equivalent to 1" of penetration into ballistics gel. If you think your cannon would be effective at stopping an "organic" target, fire a round at 24" worth of water filled milk jugs. It should penetrate all of them.

Tyler, try shooting the milk jugs with a more stable projectile. A nail wrapped in tape has a poorly placed center of mass, and will tumble upon entering the jug. A dart or arrow would be much more effective.
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Unread postAuthor: Novacastrian » Sun Oct 14, 2007 7:39 pm

I think you may need more than 5 bottles Blaster, try about 10 at least!
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Unread postAuthor: Pete Zaria » Sun Oct 14, 2007 7:42 pm

Novacastrian wrote:I think you may need more than 5 bottles Blaster, try about 10 at least!


This would surprise me seeing as the .357 in my avatar, even with some hotter loads would only penetrate seven jugs of water. Although these were hollowpoints.

To be exact, they were 110 grain semijacketed hollowpoints with 10.0gr of "Unique" behind them, average of 5 chrono readings was 1,735 fps (my personal favorite load). I sure as hell wouldn't want to be on the business end of these.

I'd try this with a spudgun but I doubt I'd make it through three... Maybe next sunny day I'll try it.

Peace,
Pete Zaria.
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Unread postAuthor: SpudBlaster15 » Sun Oct 14, 2007 8:41 pm

Well, my advanced combustion launcher can make it through at least one jug.

[youtube]http://www.youtube.com/watch?v=RI75grIGKcM[/youtube]
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Last edited by SpudBlaster15 on Sun Oct 14, 2007 9:24 pm, edited 1 time in total.
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