Yeah but then I'll have to turn it into a breech loader. Which while not a bad thing overall, would turn into a bigger project than I'd like. After a 4 year hiatus I've fallen off the launcher wagon. I've already been thinking up pistol sized designs. I've been especially inspired by some of the com...

yeah, It's a nikkon 4100 which is why the quality is lacking. That autofocus is so annoying. The battery door is broken too, do they even make cameras that have removable batteries anymore? Although now that I've fixed the big leaks in all my pumping I've loosend the seal around the tirevalve so som...

Here's an update now that all of the main leaks have been filled with epoxy. http://www.youtube.com/watch?v=Zj9jMqjbcgg There's a description on the video's page but here're the cliff notes: The .2g 6mm pellet was launched from ~3 feet away at the bottom of a 1lb coffee can, which it had no trouble ...

You and your super shock pump! 8) Oh I know the air chamber is far too large(and inefficient) for the barrel size, but I don't have anything to get into the more efficient high pressures. I'm envious of the power of your burst disc launcher. Although maybe in the near future I might lop off a couple...

I am using a shock pump(rated to at least 250 the packaging is a little vague). The main reasons I haven't taken it to higher psi is 1) there are a number of leaks I need to fix 2) the pump is extremely low volume so it takes hundreds of pumps to get high pressures. I used limited metal because I ha...

I started out to make a 6mm launcher last summer and it fell to the wayside shortly after it's beginning. The parts lived in my closet for nearly a year before my interest and funding permitted me to complete the project. This is the result. As you can see it's a simple barrel sealing T-valve trigge...

A propane torch head can't be used with MAPP/MPS/Razor gas, but you can use a MAPP/MPS head with propane. So its the propane rig not the tank.

Who says it has to be a PVC barrel? or that it is impossible to find crush rated pipe? Or that schd 40/80/120 won't stand up to the stresses of a 1-2x mix?

If anyone has the data I'd like to see some figures, for future designs.

Yeah, I noticed that after I uploaded it, it works fine though when I open it in its own window(ie double click the animation itself) or try downloading it.

I cam up with a similar design back in january but due to school I haven't had the time or money to build it nor let the spudding community in on my epiphany. The distance behind the piston would be equal to 1/4 the barrel diam. and the area of the cut-outs for blow by would need to be roughed in us...