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I could use some ideas for ammunition!

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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I could use some ideas for ammunition!

Unread postAuthor: ruger18 » Mon Apr 06, 2009 9:58 pm

I would love it if i could get some ammo ideas for a 1.5 in barrel and a 1 in barrel.

Please respond if you have any ideas.




Thanks!
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Unread postAuthor: jackssmirkingrevenge » Mon Apr 06, 2009 10:01 pm

You could also use the search feature :P More ideas than you can shake a length of PVC pipe at.

Whatever fits in the barrel is my usual philosophy :)
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Re: I could use some ideas for ammunition!

Unread postAuthor: Technician1002 » Mon Apr 06, 2009 11:38 pm

ruger18 wrote:I would love it if i could get some ammo ideas for a 1.5 in barrel and a 1 in barrel.

Please respond if you have any ideas.


Thanks!


For the 1 inch, my favorite ammo is marshmallows and gumballs. Since energy = Mass times Velocity squared, a marshmallow in a fast cannon can impart considerable damage. I manage to put holes in empty soda cans, burst full ones and even dented an old car door with just marshmallows.

As far as gumballs, the ballistics is fantastic when going for distance. Since they are light, they pack quite a punch on 1/2-5/8ths inch plywood. It was a suprise to me :shock: the first time I decided to see how deep a dent a gumball would make on a sheet of plywood and it went right through it. I'll have to post photos later.
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Re: I could use some ideas for ammunition!

Unread postAuthor: jackssmirkingrevenge » Tue Apr 07, 2009 12:20 am

Technician1002 wrote:Since energy = Mass times Velocity squared, a marshmallow in a fast cannon can impart considerable damage. I manage to put holes in empty soda cans, burst full ones and even dented an old car door with just marshmallows.


This is the logic behind High Velocity Armour Piercing anti-tank rounds, however the disadvantage of using full calibre light weight ammunition is that it has very poor sectional density which means that it loses velocity and therefore energy very quickly after leaving the muzzle.

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Last edited by jackssmirkingrevenge on Tue Apr 07, 2009 12:48 am, edited 1 time in total.
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Re: I could use some ideas for ammunition!

Unread postAuthor: Technician1002 » Tue Apr 07, 2009 12:44 am

jackssmirkingrevenge wrote:
Technician1002 wrote:Since energy = Mass times Velocity squared, a marshmallow in a fast cannon can impart considerable damage. I manage to put holes in empty soda cans, burst full ones and even dented an old car door with just marshmallows.


This is the logic behind High Velocity Armour Piercing anti-tank rounds, however the disadvantage of using full calibre light weight ammunition is that it has very poor sectional density which means that it loses velocity and therefore energy very quickly after leaving the muzzle.


This is very true and an advantage for surburban cannons. By the time the marshmallow has made it a block away, it's pretty low energy. In reality, 600 FPS marshmallows only travel about 300 feet. I can find them down the street when doing distance testing. My youtube video of shooting one over the house into the tree along my back fence shows this rapid loss of speed.

Gumballs are heavier and being a better aerodynamic shape go much farther.

[youtube]http://www.youtube.com/watch?v=GJs8gQAlQn8[/youtube]

Closer in, the fun begins with ~600 FPS marshmallows.
[youtube]http://www.youtube.com/watch?v=TW3bUP-Fov4[/youtube]

Hopefully by the weekend I'll get some gumball and plywood video to post. :D

***Edit***
No video yet, but I have posted a plywood and gumball photo on this page;
http://www.crazybuilders.com/forum/showthread.php?t=27
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Last edited by Technician1002 on Wed Apr 08, 2009 12:30 am, edited 2 times in total.
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Unread postAuthor: grock » Tue Apr 07, 2009 1:58 am

if you or your friends drink 5 hour energy or any other energy shot type thing, most of them fit quite well in 1.25-1.5 pvc. if you get a short (1-2") piece of pvc the same diameter as your barrel, fill it with water, heat it slightly so it falls out, that makes one mean slug. using a wadding helps alot on small diameter ammo, and of course potatos work great
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Unread postAuthor: ruger18 » Tue Apr 07, 2009 6:22 pm

Thanks guys for the tips!
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Unread postAuthor: Biopyro » Wed Apr 08, 2009 1:04 pm

At the top of every page here is a link to the wiki. It has a page with common ammunitions and thier properties, and if you think of anything else - add it in. Hopefully this way there will be a good guide of what things fit what size barrel.
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Unread postAuthor: boom_o_matic_2.0 » Thu Apr 16, 2009 10:25 pm

in a 1.5" barrel you can use the SCREW ON milk caps as wadding. they fit almost perfectly. the snap on dont. my friend once said "your ammunition is only limited by your barrel size and imagination."
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