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This time, instead of making plaster of paris balls, I made a cylinder of package tape of the exact inside diameter of a pvc pipe. I then filled it with plaster of paris (after temporarily plugging the bottom with toilet paper) and added water using a dropper. In 15 minutes I pushed it out with a plunger. This is what they look like.
![Ingredient Orange Drinkware Juice Bay breeze]()
It's a better ammo type than this:
https://slingshotforum.com/topic/123316-ammo-lockdown-special/?p=1399204
It doesn't disintegrate on impact and hits hard enough despite being a little lighter. The tape shell seems to make a difference. It still weighs more than a glass marble. And it's way less messier to make.
![Light Material property Measuring instrument Postal scale Gas]()
This one:
![Ingredient Writing implement Chemical compound Wood Graphite]()
..is a fail. It doesn't autorotate to hit point first.
But it will work in a miniature cannon (smooth bore). So not a total waste.
It's a better ammo type than this:
https://slingshotforum.com/topic/123316-ammo-lockdown-special/?p=1399204
It doesn't disintegrate on impact and hits hard enough despite being a little lighter. The tape shell seems to make a difference. It still weighs more than a glass marble. And it's way less messier to make.
This one:
..is a fail. It doesn't autorotate to hit point first.
But it will work in a miniature cannon (smooth bore). So not a total waste.
