Rocks are always fun. If you have a .5" barrel, you can wrap pebbles in paper towel and it will feel like a musket. Just don't bother the neighbors, have fun, and keep safe!

Nope, on the center of the diaphragm, there is a small pinhole on the circular plastic peice right in the middle, it will leak air into the barrel if not sealed. This may not be the problem, but it's a good thing to check while the valve is still open. This pinhole is in the middle of the plastic pi...

Hey Falconer, the problem is, on the diaphragm on the inside of the valve, there is a small hole in the center of the plastic piece in the middle of the seal. Air will leak through this and you can plug it with a small screw, I just had that problem, hope this helps! BTW if you cant figure it out I...

Hey Falconer, the problem is, on the diaphragm on the inside of the valve, there is a small hole in the center of the plastic piece in the middle of the seal. Air will leak through this and you can plug it with a small screw, I just had that problem, hope this helps!