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Cheap and dirty cardboard sabot nail dart

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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Cheap and dirty cardboard sabot nail dart

Unread postAuthor: boyntonstu » Mon Jun 07, 2010 6:24 pm

Cheap and dirty cardboard sabot nail dart.


Cut some cardboard disks with a piece of sharpened barrel tubing, hot glue them to the head of the nail, hot glue T shirt tail.

They flies straight and true however, not as fast as the shotshell sabot that has a better barrel seal.

This dart is in the ~600 fps range even though it weighs less than the shotshell hull design.

IOW A cheap, quick dart, that weighs more than 10 times heavier than an air rifle springer pellet and yet it goes at the same speed.

The cardboard has some potential:

Add more disks for a better seal.

Curve the first one into a nose for aero.
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Unread postAuthor: Technician1002 » Mon Jun 07, 2010 7:08 pm

I've used the lid off a pop bottle. It is stiffer and less mass. I'm working on softening them to custom mold them to my barrel sizes.
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Unread postAuthor: boyntonstu » Mon Jun 07, 2010 7:53 pm

Technician1002 wrote:I've used the lid off a pop bottle. It is stiffer and less mass. I'm working on softening them to custom mold them to my barrel sizes.


A 12 Gauge shotshell hull is the exact size for 3/4" type L copper tubing.

With a little work, I remove the steel primer holder, remove the used primer, and using a wood mold, I can force the heated plastic to re size it to the original diameter.

12 Gauge shotshell hulls are available to me from a skeet shooting range in almost unlimited numbers.

For the work involved, the cardboard disks are very advantageous.

They resemble a leather piston from a hand pump when greased up.
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