I am currently building a pneumatic cannon, although it is not finished I have done some test fires. Everything works great, the sour grapes make a nice splat against the garden shed.
The only problem is that if I want to fire downwards, then I have very little time to aim and shoot before the ammo falls out the end of the barrel. How do I overcome this problem? I cant use magnets because that doesnt work on sour grapes and many other objects. My barrel is 20mm diameter. Any ideas?
How to stop the ammo falling out the end of the barrel?
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shud_b_rite
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harsh
if your using a breech then out some solvent at the very beginning of it so that th ammo get slighly stuck. this also works with a muzzle loader, you just have to push it past the glue
i know how you feel, and im too lazy to make wadding for every shot
if your using a breech then out some solvent at the very beginning of it so that th ammo get slighly stuck. this also works with a muzzle loader, you just have to push it past the glue
i know how you feel, and im too lazy to make wadding for every shot
There are rules, and then there are hundred dollar bills.
Or stop firing undersize ammo.
Use potatos and you'll have a perfect fit and it stays there even pointing vertically down.
Use potatos and you'll have a perfect fit and it stays there even pointing vertically down.
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Canuckicks
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Like the others before, just use tighter fitting projectiles, or prehaps reverse a sabot (but that would end with the destructuon of said sabot most likely 
)
)Hes firing grapes. How much less penetrating could even a soft potato be?A-98 wrote:i find potatoes relatively lame. to squishy and soft for any good penetration
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shud_b_rite
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Actually I havnt heard of wadding. This is my first gun that I have made and I am not very experienced. But yes that should work, thanks for the suggestion.
I also dont like potatoes for ammo because my gun is too small to fire a whole potato so I have to mush it into the pipe which ends up getting messy and also because it is not heavy enough.
I also dont like potatoes for ammo because my gun is too small to fire a whole potato so I have to mush it into the pipe which ends up getting messy and also because it is not heavy enough.
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squeaks
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just use a tissue or toilet paper as wadding.
"Nine out of ten Americans agree that out of ten Americans one will always disagree with the other nine."
-Collin Mockery
Who's Line is it Anyway
Borrow money from a pessimist, he won't expect it back.
-Collin Mockery
Who's Line is it Anyway
Borrow money from a pessimist, he won't expect it back.
In that case you'd be amazed how many people don't actually fire whole potatos.
The idea is to fire a potato slug cut by the barrel or a barrel sized cutter.
If you think your barrel is too small for potatos at 20mm my cannon has a 15mm copper barrel and it fires them like nobodys business.
Mind you copper is a lot better than most pipe for cutting into spuds.
The idea is to fire a potato slug cut by the barrel or a barrel sized cutter.
If you think your barrel is too small for potatos at 20mm my cannon has a 15mm copper barrel and it fires them like nobodys business.
Mind you copper is a lot better than most pipe for cutting into spuds.