I want to attach a 12 gram changer to a 3 inch chamber. What is the best way to do this? are ther any fittings that would be threaded correctly. It has the same threades as a c02 or HPA paintball tank.

thanks guys. Would it be better to go with a longer, smaller chamber than the bigger shorter chamber. Or would it matter?

ok. Im really not sure what it weighs. Ill have to look into that.

i want it to be a relatively flat trajectory. I tried to download the ggdt but it wot work for some reason. so yeah if you could run the numbers for 10-15 degrees.

so would that shoot a rocket 60 yards or so or would i need more volume.

I want to make a canon that will fire a nerf mini vortex rocket adbout 60-70 yards. here the plan

3in.x6.5in air chamber> 1in. modified sprinkler valve> 2in.x24in. barrel.

If i did the math corectly then a 12g c02 would charge that air chamber to roughly 120PSI.

so will it work?