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90mm 10 bar pipe
Posted: Sat Aug 16, 2008 6:43 am
by MaxuS the 2nd
Not sure if anyone apart from people from the Uk will know, but does anybody have any ideas of what will fit in a length of 10bar rated 90mm pipe.
The bore is 81.4mm.
Posted: Sat Aug 16, 2008 6:53 am
by jackssmirkingrevenge
In terms of ammunition?
A typical soup tin is around 75mm in diameter, a few wrappings of duct tape and you've got a good sabot

Posted: Sat Aug 16, 2008 7:13 am
by trollhameran
ale bottles are around the same as soup tins.
Posted: Sat Aug 16, 2008 7:14 am
by jackssmirkingrevenge
What on earth do you have in mind? Rebarrelling your tennis ball cannon?
Posted: Sat Aug 16, 2008 7:27 am
by SNDM
Where did you get hold of that?
I mean, how much did it cost you?
Posted: Sat Aug 16, 2008 7:30 am
by ALIHISGREAT
maybe a mini football or something?
Posted: Sat Aug 16, 2008 8:08 am
by MaxuS the 2nd
jackssmirkingrevenge wrote:What on earth do you have in mind? Rebarrelling your tennis ball cannon?
Err. Lol.
Can't talk about it until I'm sure that there isn't going to be a contest.
It cost me £15 for 2m from Hendersons (
www.hendersons.co.uk). There were no delivery charges because I live very close and collected it myself.
Anybody know the diameter of a caulking tube?
Posted: Sat Aug 16, 2008 8:12 am
by trollhameran
A caulking tube is about 50mm if I remember rightly.
Posted: Sat Aug 16, 2008 9:46 am
by MaxuS the 2nd
Will definately need some tape on it then.
Posted: Sat Aug 16, 2008 9:48 am
by trollhameran
If you shot a silicone tube and made it burst, it would make one helluva mess

Posted: Sat Aug 16, 2008 9:54 am
by MaxuS the 2nd

Certainly would, although I'm tempted to fill it with cement..
On the 16bar rated 90mm pipe, the bore would be 76.6mm, which is exactly 3". But on the other hand costs a fair bit more.
Posted: Sat Aug 16, 2008 10:59 am
by trollhameran
lol cement would probably make a mess to, there'll be bits of whatever your shooting at everywhere
Imo its better to go for the slightly bigger bore, because its easier to make your ammo bigger than it is to make it smaller.
Posted: Sat Aug 16, 2008 11:07 am
by MaxuS the 2nd
I suppose so, and I won't have to buy any 16 bar, which would cost the bomb.
Posted: Sat Aug 16, 2008 12:34 pm
by Ragnarok
I've always wanted to make a cannon to fire pineapples (struck me as a novel idea)... perhaps smallish pineapples?
MaxuS the 2nd wrote:The bore would be 76.6mm, which is exactly 3".
3" is 76.
2 mm - so it's not exactly 3"... Sorry, that's just my pedantic side kicking in.
trollhameran wrote:Imo its better to go for the slightly bigger bore, because its easier to make your ammo bigger than it is to make it smaller.
By that logic, every cannon should have a 20" bore, because then you could fire people.
Personally, I love my 20.3mm bores - it just feels "right", and there are lots of cheap things that fit it well.
Posted: Sat Aug 16, 2008 12:40 pm
by trollhameran
Lol Rag, I was only going by the two different sized Maxus was talking about, 20" bore would be quite cool though
Most of my cannons only have 15mm bore, but there great fun to shoot.