Guess I will buy a regulator. Thanks guys

So I built my propane injection launcher and all the test fires went perfect. Put spuds through 3/8 inch plywood at 50 feet and fired consistently. I know my mix is a little rich because I used a 4 inch nipple because I couldn't find a 3 and 1/2 inch. Took it apart to paint it. Made a golf ball barr...

Sorry to disappoint you Jack but, I test fired yesterday by just pulling the trigger and have no damage to myself !

Holy crap!

Ha ha Natas thats a great idea! I think I just get a little paranoid from reading about how this can fail how that can fail. Just trying to be as safe as possible so I don't end up missing fingers or anything LOL!

I was thinking I might try using my dogs training shock collar to "remote fire" my spud gun for testing. Has anyone ever tried this?

I was reading posts and somebody had mentioned a mysterious mapp gas shortage. Evidently the major mapp gas supplier has issued a recall for faulty canisters whcih have caused severe burns and injuries. Thought you guys should know.

I ordered a 4ft 10inch rifled clear PVC barrel so it will look cool on night ops so my math figures roughly a 22 inch chamber but, if I go with the barrel over chamber design I think I need to in clude the turn as part of the chamber which I haven't done the math on.

Hi guys I am a noob and I did try and find answers before I asked this but since I was un successful has anyone done or notice any difference between short fat chambers and longer thin ones in a combustion gun? I am designing my first propane injected and have some 3inch and know I am using a 1 .5 i...