teach, that is similar but not the same as the method I use now- the only similarity is the epoxy-
I have used a twisted steel bar and a plate of steel for the thing. Not cord, and doweling, and all that stuff.
I started out with that method- but now I use a cutter and a similar setup to rifle the barrel.
looks a LOT like an air rifle barrel.
now I use 4 grooves- much simpler than 6- perpendicular can be achieved by simply turning the end plate 90 degrees and pushing it back down the barrel.
I will get pictures up eventually.
the sabots combined with rifling and fletchetts is original as far as I know- I haven't been able to find any info on it.
I never said the rifling was original. I just couldn't remember where I found it.
there is a better method for rifling- use a twisted 1/4 inch steel bar and a square hole in a steel plate.
much better twist.
the cutter can be made from high carbon tool steel by forging it into a slight V shape, punching a square hole in the center, and putting a 25 degree bevel on each end(one side only).
drill a small hole in the end of the steel bar and lock it on with a pin.
it gives MUCH better grooves plus it gives MUCH better twist, as well as being more precise.