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Posted: Sun May 03, 2009 1:05 pm
by MRR
I like that gun so much at the moment that I added a breach load that was reserved for one of my bigger guns.
Well, looks bad ass....

Close up of the breach. I will also add a handle.

Posted: Sun May 03, 2009 1:10 pm
by CpTn_lAw
Niceee
Any guess on the average muzzle velocity ?
Posted: Sun May 03, 2009 1:17 pm
by MRR
Nope, I was so busy building that i didn't test the performance with silencer and now it's getting dark outside

.
Posted: Sun May 03, 2009 4:31 pm
by c11man
why cant the sun rise faster? anyway i cant wait till we get some preformace numbers from this beast
Posted: Sun May 03, 2009 5:55 pm
by daniel323
that gun looks amazing and powerful great build.
Posted: Mon May 04, 2009 9:35 am
by MRR
Made some test shots and the results were not disappointing but also not as good as i expected.
I simply build too fast.... I have multiple leaks (noticeable at 200psi +) and the breach load doesn't seal 100%.
I'm going to disassemble the gun an try again.
Posted: Mon May 04, 2009 10:22 pm
by Gaderelguitarist
MRR wrote:Made some test shots and the results were not disappointing but also not as good as i expected.
I simply build too fast.... I have multiple leaks (noticeable at 200psi +) and the breach load doesn't seal 100%.
I'm going to disassemble the gun an try again.
Slap on a couple more layers of Teflon tape and really crank those fittings together.
For the breach, maybe try a sealing gasket that makes a seal when you close the bolt.
Posted: Wed May 06, 2009 11:48 am
by MRR
I've found the problem...
The hose barb that the piston seals against is screwed "upside down" so I had to wrap the teflon tape in the other direction (forgot about that).
I made a test shot at 245psi on a 3cm wooden board (5" nail) and it went right through.

Posted: Mon May 11, 2009 1:41 pm
by MRR
Here is a little video footage i shot at the weekend.
Yes I know the garden is a mess at the moment.
I've found the music on jamendo.com ... sounds like Kung-Fu somehow
[youtube]
[/youtube]
Posted: Mon May 11, 2009 2:12 pm
by jackssmirkingrevenge
Nice

could the aiming fail be coming from the fact that you weren't shooting from rest?
Try resting the launcher on a bench or something and try shooting a group of 5-10 shots, with the laser attached and always pointing at the same spot - see if it groups at random.
Posted: Mon May 11, 2009 2:19 pm
by MRR
I will try that but the biggest problem in my opinion is the alignment of laser and barrel (just zip tied it)
Posted: Mon May 11, 2009 2:26 pm
by ALIHISGREAT
I love damage vids, be sure to keep the coming!
Posted: Mon May 11, 2009 2:26 pm
by jackssmirkingrevenge
Why not buy a proper laser,
they're not that expensive.
Posted: Mon May 11, 2009 2:28 pm
by paaiyan
Well jack's idea is the best thing either way. If it's random groupings you need to probably find better ammo. If your groupings are tight then it's just a matter of adjusting your laser to compensate for it.
Posted: Mon May 11, 2009 2:38 pm
by MRR
The darts are ok and very accurate at short distance.
@jsr
I bought this cheap laser to disassemble it and give it a new housing/switch that fit the gun. I'd rather build than buy something.