Bazooka

[iPaintball]

Wow, this thing is beast! Is it a coaxial?

[jackssmirkingrevenge]

Wow, this thing is beast! Is it a coaxial?

yep:

The barrel is 3/4" aluminum inside a 3" pvc pipe. The chamber is 3" pvc 14" long. The piston is spring loaded so you can load ammo first without charging, Very dangerous to charge first. I uses 110 LBS of air. The air release is in the gun handle.

[bob-a-lu]

two words BAD ASS!!

[noob of noobs]

That is truley amazing! Post damage pics!

[thespeedycicada]

BBEEAASSTTthats amazing dude cant wait to see more of youre creations!

[fred]

Sorry about the double posting MrCrowley, as I said, I,m new to this. I build and design guns. Computers are not my strong point so I,m still learning how to navigate on here. I guess my excuse is ignorance of this program.

[seudo411]

Okay Firstly well done on a great job, well built and presented, secondly I just have two questions,

1.) What is the travel on your piston, i.e. from sealing to firing.
2.) How are you filling ?

[SoCalSiege]

Sooo..how is it floating again?

[fred]

Piston travel is 2". It is filled with an air compressor at 110lbs.

[jackssmirkingrevenge]

Piston travel is 2"

That's far too much travel for a 3/4" barrel, all it needs to travel is 1/4 of the barrel inner diameter for maximum efficiency so in this case you cna have it 10 times smaller.

[fred]

Thanks for that answer, it does seem to shoot a little weak. You always learn by listening.

[fred]

I do have a question for you. I tried loading a jpeg file to the album. It said it was done, however it never came through. It was sized right, just would not download into the album.

[jackssmirkingrevenge]

Modify it to 0.1875" and you'll see the difference

[fred]

This is the internal layout of the bazoka. I tried 5 times to add it to the album and it would not go through.

[jackssmirkingrevenge]

If I could make a suggestion, remove the spring altogther (after all you're filling from behind the chamber right?) add remove everything behind the delrin ring at the rear of the piston. Add a rubber bumper to the delrin endcap and make sure that the distance between the front of the bumper and the back of the piston is a little less than 0.2 inches. You should then see a significant increase in performance.