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Mini BB coaxail-full metal
Posted: Fri Aug 21, 2009 7:49 am
by qwerty
Here is my new and first piston BB coax made with 15mm copper and some other parts.
I struggled to get this to work but finally wrapped some tape around the piston.
Strangly enough you can fill it up from the barrel aswell
Any tips welcome.
Here are the pics.
There!
Posted: Fri Aug 21, 2009 7:52 am
by twizi
whats the piston made of
Posted: Fri Aug 21, 2009 7:53 am
by qwerty
Two little car wheels glued together
Posted: Sun Aug 23, 2009 2:07 am
by qwerty
Update! Damage pics
I chronied this at 100 PSI and i got 521fps
BTW that wood is 3mm thick
This was by accident after going through an apple
Pin through a penny
and...... a box
ive ordered this shock pump and i cant wait for it to arrive.
http://www.chainreactioncycles.com/Mode ... elID=38214
Im getting a solid nylon piston off wildebeers so i can use that at 300 PSI
Posted: Sun Aug 23, 2009 2:14 am
by rna_duelers
Now that's cool.How does it go with sinkers or similar heavy shot?If you've used ammo like that.
I've got to make myself a small bore pneumatic sometime
nice simple and a bit of power
Posted: Sun Aug 23, 2009 2:18 am
by qwerty
Thanks ive only used bbs at the moment because i cant find the fishing shot
and ive allready used up the 6mm ones for other guns
(Which is better FORE!!!!s or mine)
Posted: Sun Aug 23, 2009 3:41 am
by FORE!!!!
qwerty wrote:Thanks ive only used bbs at the moment because i cant find the fishing shot
and ive allready used up the 6mm ones for other guns
(Which is better FORE!!!!s or mine)
I smell a showdown
Posted: Sun Aug 23, 2009 3:49 am
by inonickname
FORE!!!! wrote:qwerty wrote:Thanks ive only used bbs at the moment because i cant find the fishing shot
and ive allready used up the 6mm ones for other guns
(Which is better FORE!!!!s or mine)
I smell a showdown
Can I join in? I just finished and tested my co-ax..
Posted: Sun Aug 23, 2009 3:53 am
by FORE!!!!
GULP!!
Posted: Sun Aug 23, 2009 4:15 am
by qwerty
Can I join in? I just finished and tested my co-ax.. Laughing
Show us a pic then we will decide.
Posted: Sun Aug 23, 2009 4:25 am
by inonickname
I'll post it tomorrow after more tests (400 psi).
You can have a sneak peak I suppose..I still need to cast the aluminum foregrip, grip, bipod etc..
Piston and barrel support, with chamber and barrel in background..
Posted: Sun Aug 23, 2009 4:28 am
by qwerty
Ummmmmmmm.......... no
Posted: Sun Aug 23, 2009 5:09 am
by FORE!!!!
@qwerty
what pressures are u using??
and what is the bore size of ur barrel?
Posted: Sun Aug 23, 2009 5:26 am
by qwerty
At the moment im using around 100 psi and its 6mm barrel.
but did you see that shock pump i put on?
I cant wait for some 300psi damage pics with a solid nylon piston
Posted: Sun Aug 23, 2009 5:39 am
by inonickname
It's pretty devastating even with the low (300 psi) pressure..400 should be monstrous.
It's been punching nice holes in everything I've thrown at it, any requests for targets?