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Finding .177" pipe

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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Re:

Unread postAuthor: Kilash » Sun May 17, 2015 12:00 am

Gippeto wrote:1/4" brakeline from the auto parts store of your choice. (NAPA)

.177 pellets fit near perfectly, it'll handle several thousand psi, and the best for last....

ITS CHEAP. :D


What I used for my .177 pistol, brake lines tubes make awesome cheap barrels, plus they come with brass fittings you can simply screw into whatever. Also, a 1/4 rigid brake line would be rated to about 10,000 - 11,000 psi burst pressure, no need to sleeve or reinforce for an air gun. Standard bundy brake line is rolled from mild steel sheet, with a wall thickness of of 0.028 inches. If you get bare steel lines (no "poly coating" or galavanization), that works out to an 0.194" nominal inner diameter. When I load my pistol with 0.177 BBs, I use a bit of thin paper or plastic for wadding, but I find that you don't need any wadding for 0.177 lead pellets, they're a perfect seal in a 1/4" tube, and with enough pressure the skirts obturates against the barrel anyways.
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Re: Finding .177" pipe

Unread postAuthor: vng21092 » Sun May 17, 2015 8:51 am

Brake lines should have sleeves though, they bend SO easily. Check this out, it's my go-to barrel, accuracy is pretty good too:

http://www.amazon.com/gp/product/B004XN8D22/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1

Fit is pretty good too, could be better of course
(ID=.18'', BB Diameter=.171'' (Measure with digital caliper))
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Re: Finding .177" pipe

Unread postAuthor: Kilash » Sun May 17, 2015 12:42 pm

I use an oversized black iron pipe, namely just to contain any fragments or sharpnel if the barrel does indeed bursts, but it makes a cheap sleeve if you're worried about dropping and bending the barrel.

Vng, did you actually order this on Amazon??? How did that go?
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Re: Finding .177" pipe

Unread postAuthor: vng21092 » Sun May 17, 2015 1:21 pm

The hand in that photo is mine. And yes, I did and... it arrived? lol
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