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955 fps!!!

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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955 fps!!!

Unread postAuthor: boyntonstu » Mon Feb 22, 2010 1:25 pm

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955 fps!!


10d nail with 10 Gauge wad at 300 psi. First ProChrono shot.

Image

Home made light kit. I used bulbs and sockets salvaged from a microwave.

Notice the tape over the light slits.
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Unread postAuthor: jackssmirkingrevenge » Mon Feb 22, 2010 2:30 pm

Impressive! And nice to see you got a proper chrony :)
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Unread postAuthor: Gippeto » Mon Feb 22, 2010 2:33 pm

That's snorting right along. :)

Your light kit looks far sturdier than the one which came with my F1, good job.

Out of curiosity though, have you tried a shot outside without the light kit?
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Unread postAuthor: boyntonstu » Mon Feb 22, 2010 3:21 pm

Gippeto wrote:That's snorting right along. :)

Your light kit looks far sturdier than the one which came with my F1, good job.

Out of curiosity though, have you tried a shot outside without the light kit?


Thanks.


Note that the light kit just sits on the plywood and I can slide adjust it if necessary. I can use a spring clamp or a C clamp if necessary.

All shots are inside the garage.


I just shot a marble hot glued to a 10 gauge wad at 1044 fps using 300 psi. First time to break 1,000 fps!

The marble weighs much less than a 10d nail.

I am quite satisfied with the Trom-Boyn Oak piston.

As I clean it up it looks better and better.

Note too that the barrel is friction fitted to the T with no apparent problem.

I have been thinking about a lock mechanism for just in case, and would appreciate your inputs.

Something along the line of a plastic belt clip that engages from both sides comes to mind. The kind that you squeeze to separate.
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Unread postAuthor: deathbyDWV » Mon Feb 22, 2010 4:00 pm

That's impressive... Why not try 500 psi? Or is that gun not. Rated for it...
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Unread postAuthor: boyntonstu » Mon Feb 22, 2010 4:31 pm

deathbyDWV wrote:That's impressive... Why not try 500 psi? Or is that gun not. Rated for it...


I have had it up to 550 psi, no problem.

I am developing nail darts and 300 psi is enough for that.


I am curious if the gun can break the SOS so I may go to 550 psi sooner rather than later.
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Unread postAuthor: far_cry » Wed Feb 24, 2010 3:38 am

boyntonstu wrote:
deathbyDWV wrote:That's impressive... Why not try 500 psi? Or is that gun not. Rated for it...


I have had it up to 550 psi, no problem.

I am developing nail darts and 300 psi is enough for that.


I am curious if the gun can break the SOS so I may go to 550 psi sooner rather than later.


i am waiting :D :D great work dude

so what caliber the barrel have ,16mm?

where is the thread of this gun you build ,can you put the link

thanks
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Unread postAuthor: boyntonstu » Wed Feb 24, 2010 7:54 am

i am waiting :D :D great work dude

so what caliber the barrel have ,16mm?

where is the thread of this gun you build ,can you put the link

http://www.spudfiles.com/forums/shootin ... 19944.html
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Unread postAuthor: rcman50166 » Wed Feb 24, 2010 12:24 pm

Muahh ahhh ahhh! The photoshop bandit strikes again!
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Unread postAuthor: boyntonstu » Wed Feb 24, 2010 2:48 pm

rcman50166 wrote:Muahh ahhh ahhh! The photoshop bandit strikes again!


And you should see the hole through the garage wall!
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