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Ammo

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Ammo

Unread postAuthor: Abigor » Mon Apr 30, 2007 3:27 pm

What is the best but cheap round to put in a pneumatic cannon?, for a barrel with a width of 15, 22 or 28mm?
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Unread postAuthor: pyromanic13 » Mon Apr 30, 2007 3:29 pm

today is not your day... wrong section. this goes in the ammo section.
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Unread postAuthor: Abigor » Mon Apr 30, 2007 3:30 pm

sorry didn't reliase there was an ammo section, thanks
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Unread postAuthor: Specialist » Mon Apr 30, 2007 3:52 pm

i think a marble of some sort fits in a 15mm barrel. i think most barrels for marble fits in a 15 or 16mm barrel. im not fimiliar with millimeters though. i just go by what it says on the pipe.
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Unread postAuthor: pyromaniac » Mon Apr 30, 2007 4:11 pm

if its 1/2 inch or 3/4 inch the half inch fits marbles and 3/4 i shoot lincoln logs out of.

basically make the millimeters inches.
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Unread postAuthor: locksmith » Mon Apr 30, 2007 4:45 pm

I ordered 2000 marbles off ebay cost 40.00usd delivered most of them fit in a 16mm barrel some are alittle big but with some wadding they would work in your 22mm barrel
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Unread postAuthor: Abigor » Tue May 01, 2007 7:49 am

What are lincoln logs?, I'll just test different ammo and barrels easier than measuring it all
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Unread postAuthor: Specialist » Tue May 01, 2007 4:05 pm

umm.... you dont know what lincoln logs are? well for one they sound like the best ammo. and secondly they are little logs that you can build mini log cabins with and have cowboy and indian wars in. they are extremely fun too. :D
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Unread postAuthor: chaos » Tue May 01, 2007 4:31 pm

lead fishing sinkers are devastating... i shot through 3 pieces of 1/2 ply at 150psi with a 5/8 sinker.
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Unread postAuthor: pyromaniac » Tue May 01, 2007 6:09 pm

you know these things. they fit in 3'4. they are hilarious to shoot.
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Unread postAuthor: spudthug » Tue May 01, 2007 7:33 pm

pycrete is the cheapest and really hard ammo..if u dont know waht it is then il ltell u..

its a mixture of sawdust and water, put it in the freezer inside one of ur barrels to make pycrete!! simple,cheap,very hard ammo right in ur own home
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4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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Unread postAuthor: paaiyan » Tue May 01, 2007 7:40 pm

Wouldn't it be easier to just use ice?
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Unread postAuthor: lukemc » Tue May 01, 2007 7:45 pm

paaiyan wrote:Wouldn't it be easier to just use ice?
easier but not as hard :wink:

http://en.wikipedia.org/wiki/Pykrete
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Unread postAuthor: paaiyan » Tue May 01, 2007 7:47 pm

Of course, one could always just use rocks.
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Unread postAuthor: joannaardway » Wed May 02, 2007 3:30 am

I assume that because those are the numbers you used, you're talking about metric copper.

In which case, your bores are about the following (as recently measured by my brother):
15mm has a 13.5mm bore.
22mm has a 20.2 to 20.4 mm bore
28mm has a 26.4mm bore.

From that, you can start experimenting...
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