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Posted: Wed Jun 20, 2007 1:08 am
by chaos
so say i had 3.5mm wall thickness airline for my pilot (which i do) would it be any less safer than:
PVC coaxials up to 3/4" calibre using 40mm pipe (3.5mm wall thickness) as a chamber and used them up to 400 psi...
??
Edit the OD of the airline is 12mm
Posted: Wed Jun 20, 2007 2:45 am
by jackssmirkingrevenge
12mm o/d with a 3.5mm wall thickness should cope very easily with at least 400 psi.
Posted: Wed Jun 20, 2007 8:40 am
by Bubba05
Twitch are you talking about an open scope? like the old school scopes on WW1 .303's? You can order them from winchester?
You could also make one outa aluminiuem window track with a small block guide at the end of your muzzel to ceter it!
Bubba
Posted: Thu Jun 21, 2007 2:19 am
by TwitchTheAussie
Nah mate. Like one off a SVD Dragunov. Thats what I want.
Posted: Thu Jun 21, 2007 2:43 am
by Bubba05
Oh ok mate! thats gunna be a bitch!
Bubba
Posted: Thu Jun 21, 2007 2:45 am
by TwitchTheAussie
Yeah I know. At least my science project combustion is goin well parts wise, I just need to epoxy it all together.
Posted: Thu Jun 21, 2007 2:47 am
by Bubba05
sounds good mate!! ya gunna post some pics of it soon?
Bubba
Posted: Thu Jun 21, 2007 2:53 am
by TwitchTheAussie
Hell yeah first proper cannon Ive made. Well non-ghetto anyway
Posted: Thu Jun 21, 2007 2:57 am
by Bubba05
LOL hope it all goes well mate!! good luck and hope to see it soon!!
Bubba