Feel free to add your own barrel materials, I'm only listing the ones I've used. be sure to add as much info as possible or you will be ignored.
Brass: Fits Stock darts (size 17/32) or 13mm FBR stefans (size 9/16)
The most expenisve of the barrel materials, but one of the most expertly machined of them. It is commonly found at Large hobby stores. I personaly get mine form either Junction Models or Hobby Habit. They are sold in incremented diamaters which fit perfectly inside each other, which is why it is commonly used to make breeches from. Brass is very thin.
Hep20 Leap: Fits stock darts
Hep20 is a flexable cold water pipe sold at Bunnings, in either 2.5 meter lenghts for $7, or 25 meter rolls for $69. It comes in 2 sizes: 16mm and 24mm (i think). use the 16mm. It has a tight fit on stock darts, and it is quite hard to fit a streamline dart in Hep20 head first.
16mm Aluminium: Fits 13mm FBR stefans
Sold at bunnings in 2.5 meter lengths. Very popular amongst Adelaide Nerfers. Will not fit stock darts.
PETG: Fits 12.7mm stefans. can fit 13mm stefans tightly. Stock darts fit very loose. (Based on inform3r's PETG, Diamater varies between seller)
PETG is only avaliable in mass orders and is not sold in stores. It is most commonly sold on by members of Nerf Forums. OzNerf member Inform3r sells it on this site for $7 for 8 feet. PETG is very thin, like brass
Crayola Barrels: Fits 13mm Stefans and stock darts
Yep, Crayola Textas. Not a higly recomended barrel material, but can work in a pinch. Requires the tip to be sawn off and the insides gutted and sanded. Crayola barrels are tapered, meaning that the diameter is wider on one side than the other.
Last edited by Roger Explosion on Fri Apr 16, 2010 4:21 pm; edited 1 time in total