Barrel Rifiling

[SpudStuff]

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.

[Benny]

please give more info.

[jrrdw]

Yes it will, as long as the tool stays straight and doesn't tilt sideways.

[sgort87]

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.

[SpudStuff]

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.

[Flinchy]

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.

[)DEMON(]

it is possible to make one of those tools yourself.

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

[jrrdw]

A broomstick with screws in the end, turn the screws to adjust the detph.

[SpudStuff]

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

[SpudStuff]

as too making the tool
cut diagonal groves in a piece of dowell and insert a rasor blade

[boilingleadbath]

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.

[sgort87]

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>.

[rna_duelers]

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 ... ng+barrels&

[sgort87]

Very nice! How are you controling the angle of spin?

[boilingleadbath]

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...)