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spring piston collapsable sniper !!!!!!! FINISHED!

Built a BB Machine Gun? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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spring piston collapsable sniper !!!!!!! FINISHED!

Unread postAuthor: ghostman01 » Fri Feb 22, 2008 5:10 am

well the first thing i'd to say is ouch..... i shot my self in the leg and it hurts alot left a little bruise infact this is resonably powerful ive worked it to be around 360fps which id say is good for a home made springer. good adition to my collection lol


SPECS:
chamber: modified pneumatic door opener
piston: modified pneumatic door closer piston (got two of the o-ring holders and welded an extra washer to hold spring and trigger)
power: 360fps or so
barrel length: going to be 35cm with balloon breecher breech.

DONE
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Attachments
SMDC0806.JPG
chamber
SMDC0807.JPG
trigger
SMDC0808.JPG
bolt/ breech
SMDC0809.JPG
balloon breecher
SMDC0812.JPG
CASE
SMDC0813.JPG
inside
SMDC0814.JPG
appart
SMDC0815.JPG
together
SMDC0811.JPG
piston
SMDC0822.JPG
SMDC0823.JPG
scope mount
SMDC0824.JPG
Last edited by ghostman01 on Mon Feb 25, 2008 5:02 am, edited 4 times in total.
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Unread postAuthor: Carlman » Fri Feb 22, 2008 5:14 am

i very much dought 400fps for a springer, but nice work anyway :D
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Unread postAuthor: ghostman01 » Fri Feb 22, 2008 5:16 am

yeah thats what im guessing cause my rp pistol id 300 and that hurt a bit and this one hust bout 3times as much and bruised after 20secs so yeah ill have a look to morrow hey btw whats this A.s.C looks interesting
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Unread postAuthor: hotknife ralphie » Fri Feb 22, 2008 5:23 am

Hey, if you don't have a chronograph try this:

http://www.redwolfairsoft.com/redwolf/a ... ulletID=34

PS-Yes I'm aware someone has already posted this link but I can't remember who or where, and I know that it won't be the most accurate gauge of power ever but its better than guessing...I think. Anywhos have fun.
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Unread postAuthor: Carlman » Fri Feb 22, 2008 5:24 am

ajdevi92 wrote: hey btw whats this A.s.C looks interesting


if your an aussie inquire through RNA
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Unread postAuthor: ghostman01 » Fri Feb 22, 2008 5:33 am

whos rna

and yes i ve seen that site before
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Unread postAuthor: Carlman » Fri Feb 22, 2008 5:39 am

rnaduelers, fellow aussie
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Unread postAuthor: ghostman01 » Fri Feb 22, 2008 5:49 am

ok thanks i will get in touch
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Unread postAuthor: potatoflinger » Fri Feb 22, 2008 9:41 am

That looks a bit ghetto, but if it can shoot an airsoft pellet 400 fps, I'm not complaining. I would say it could easily get 400 fps, because those door closing mechanisms are very strong, and if you're using it the way I think you are, then you could easily hit 400 fps with that thing.
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Unread postAuthor: The_Kangsta » Fri Feb 22, 2008 10:51 am

Just wondering, if I made a springer out of the spring used in the SNAP Nerf gun here http://boltsniper.com/submitted/Carbon/ ... SNAP1.html , aprox. how many fps would i get
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Unread postAuthor: Ultimate Weapon » Fri Feb 22, 2008 7:25 pm

About 500 FPS with .2g.
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Unread postAuthor: ghostman01 » Fri Feb 22, 2008 7:53 pm

yeah ive got to get a longer barrel for it yet and then ill test the fps and ive also modified the door closer i took it apart and put two oring holders on it so it got even more pressure and welded a washer onto the shaft so it take the spring pressure off of the plastic oring holders and with my balloon breecher idea which keeps the ammo held tight in the barrell and allows a little bit of pressure to build up behind it with some shots you can hear a bang lol
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Unread postAuthor: sieve5 » Sun Feb 24, 2008 1:08 am

whew thats like super pimp lol u could like go hunting with something like that, not saying that you should but, the case is pretty pimp XD
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Unread postAuthor: blind909 » Sun Feb 24, 2008 1:08 pm

i dont get how the baloon breech works, care to explain?
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Unread postAuthor: ghostman01 » Mon Feb 25, 2008 12:28 am

lol wondering when you would ask ill post a diagram later lol
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