Favorite/Most Practical DIY RPG Plans?

[Jester316]

[Sir Stubby Eyre]

[NWPPA]

How about something like this?
http://www.hustlepaintball.com/Metadyne ... QgodVAwAkw

Its regulated and launches a nerf vortex rocket. We use them in paintball as bunker busters or to take out Tanks.

[Rentax]

[Jester316]

[Reaver]

That is pretty inefficient, I can stick a golf ball through a fiberglass car hood at 60 feet on 60 psi, 120psi and the thing vanishes into the horizon LOL. Also could have something to do with the projectile itself (weight and o.d. of the projectile in comparison to I.d. of the barrel). I still say use a tennis ball or a racquet ball for a projectile. And if your building out of pvc don't consider firing it off in the winter, cold pvc and high pressure will end in pain and suffering.