Well i did plug the bottom of the hole to prevent blowby, but i left the top hallow = hallow point! i wonder what it would to ballistic gel

If someone can find these, please make a video of use with a QEV and high pressure, my compresser can only goto 125psi, so i cant use them, but i would love to see what they coule do

I was looking around the fishing section at my local walmart when i found some 1/4 and 1/2 fishing sinkers, They look perfect for ammo. Its made out of 100% lead and has a good weight to it. they have a little hole in it for the string, which pretty much makes it a hallow point. Check out the pics, ...

These are some damage videos i took, plus a balance test and sound test. All tests were done at 60psi, soon i will make one using 125psi [youtube]http://www.youtube.com/watch?v=a8XP-aXP2Hs[/youtube] [youtube]http://www.youtube.com/watch?v=MFgQhdMfCmQ[/youtube] [youtube]http://www.youtube.com/watch?v...

By the way, it put a fist sized dent in a sheet of 2mm thick aluminum

Nice! Great first cannon! Welcome to Spudfiles!! Eventhough the tank seems oddly placed, I imagine it is very well balanced like that. I like unconventional. I remember the first time I cut up a can like that.( great exit hole!! :D ) Nothing can beat those first couple of shots. Enjoy it! Thank you...

This is my first cannon, it is a very simple design consisting of 1 old fire extinguisher tank, 2 3/4" 90* elbows, 1 3/4" 6" long pipe, 1 3/4" t fitting, air compressor quick connect, 3 3/4" nipples, 1 modded 3/4" sprinkler valve, and 1 3/4 coupler fitted on a 3' long 3/4" pvc pipe for the barrel. T...

This is an idea i've been working on for a few days now, It is otherwise a plane old air gun except for a fixed pressure c02 regulator (150 psi) where the recharge fitting for the tank would otherwise go. the threaded 16 gram c02 bottle which you can get pre-charged. I got mine at walmart. the can w...

Its almost like a garden hose outlet, but just slightly smaller. Same threads

I am building my first cannon, and i have all the things i need. all but 1: i have what looks to be an old amerex B417 ABC (Dry Cem) fire extinguisher tank, but the thread size is odd. It has 12 threads/inch, and its silghtly smaller then 3/4. any idea what this is, or where i can find a converter? ...