Thanks for all the comments about this. A few questions have been asked,
Joe, it would be nice to try a full sized barrel, perhaps one day.
Indian George, there is no tutorial but some more imfo can be found on this thread on britishblades,
http://www.britishblades.com/forums/showthread.php?t=51310
Deker, the art is in not welding the mandrel inside the wrap, see above thread for more imfo.
David, this piece is not stainless just 15N20 and plain carbon steel.
Jim, it might look like 11 rings stack welded, but here is the billet before welding. A gentle spiral. The piece is leaning against a 12" swage block
Mick.