Originally posted by Cookus: Rustic, Take a look at the "How to Resources" on page 2 and read the article entitled "Wood arrow Tapering Jig" by Rob DiStefano.
Originally posted by Fletcher: .380 is over 3/8", pretty big for an arrow shaft. Normal is 11/32, .344 or 23/64, .359. Unless you need t use the 5/16 head, I would recommend a regular 11/32. It will fit better and be stronger.