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Barrel Rifiling

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Barrel Rifiling

Unread postAuthor: SpudStuff » Sun May 21, 2006 12:34 am

I just saw a show on how they mave military issue m-16s. when they rifle the barrel they have a small brass piece that they put in one end of the barrel then using a press, push it to the other side. this works for aluminum so it shoufd work for PVC.
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Unread postAuthor: Benny » Sun May 21, 2006 2:35 am

please give more info.
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Unread postAuthor: jrrdw » Sun May 21, 2006 6:07 am

Yes it will, as long as the tool stays straight and doesn't tilt sideways.
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Unread postAuthor: sgort87 » Sun May 21, 2006 11:57 am

You guys do know that rifled barrels exist right? Joel from Spudtech makes them. Look at the first four things on the <a href="http://www.spudtech.com/components.asp">Components Page</a> on Spudtech.
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Unread postAuthor: SpudStuff » Sun May 21, 2006 1:10 pm

yes i know. I don't think it is right to pay $30 for 5 feet of weakenef pvc.

the tool is the exact size of the ID of the barrel. there are small protrusions that rotate the Tap as i guess you could call it.
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Unread postAuthor: Flinchy » Sun May 21, 2006 1:14 pm

yes, im not sure where you can purchase that tool, probably your local home depot but im not completely sure. if any of you manage to find this tool please send me a message, i am very anxious to purchase one myself.
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Unread postAuthor: )DEMON( » Sun May 21, 2006 1:20 pm

it is possible to make one of those tools yourself.

SpudStuff,how do you make those animations?(your avitar)
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Unread postAuthor: jrrdw » Sun May 21, 2006 7:03 pm

A broomstick with screws in the end, turn the screws to adjust the detph.
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Unread postAuthor: SpudStuff » Sun May 21, 2006 8:15 pm

SpudStuff,how do you make those animations?(your avitar)


use Adobe Image ready. it comes with photoshop

stare with a image. make a new frame copy of that image. change it just a little then make a copy and repeat

there shoul ba moved some where else
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Unread postAuthor: SpudStuff » Sun May 21, 2006 8:17 pm

as too making the tool
cut diagonal groves in a piece of dowell and insert a rasor blade
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Unread postAuthor: boilingleadbath » Sun May 21, 2006 11:03 pm

I can garantee that cutting tool isn't brass. Most likely tungsten carbide with a yellow finish - which is like the carbide chips for my lathe.

Anyway, I believe the method is called broaching. It'll end up being allot harder to cut a barrel like that than with a multi-pass system.
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Unread postAuthor: sgort87 » Sun May 21, 2006 11:18 pm

Someone on Spudtech developed a rifling method a while back and was able to do about a foot of it. I believe - but am not certain - that the mothod was far from the performance that Joel's barrels give. And they do not cost $30 and are not so "weakened" as SpudStuff says. These barrels give a very accurate shot. Check out <a href="http://www.burntlatke.com/rifle150.html">Latke's Spudtech rifled barrel test</a> and <a href="http://www.burntlatke.com/riflemore.html">Latke's interview with Joel on his rifled barrels</a>.
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Unread postAuthor: rna_duelers » Mon May 22, 2006 2:22 am

I have done it,only with small bore barrels but.Some think im lying i did it witha broom stick and nails,but i did. http://www.spudfiles.com/forums/viewtop ... g+barrels&
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Unread postAuthor: sgort87 » Mon May 22, 2006 10:08 am

Very nice! How are you controling the angle of spin?
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Unread postAuthor: boilingleadbath » Mon May 22, 2006 4:05 pm

Sgort, you are a moron.
Cutting grooves in the pipe wall means that the hoop stress has to be concentrated into those thin parts - which being maybe .6 times as thick means that the pressure rating of the pipe is now only .6 times normal. (still 200 or so for 2" pipe...)
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