Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
The bottle is safer since it expands with the pressure. However a PVC chamber is rigid. Since none of the two was built for this usage you have to run the risk of a failure.
Here is how a bottle looks before exploding: [/url]