I have used then both ways, kind of depends on what I'm making and what I have on hand. With the one you will have Two end grains to deal with while finishing.
Not sure I understand the question on the type of lathe, I wouldn't see why it would make any difference.
Tim
What I was trying to figure out was whether there was a grain orientation that was more period correct.
A spring-pole lathe is driven by a belt wrapped around the workpiece, and my thought was that in order to have a long enough piece to make that work would normally entail having the grain running long-ways. That is the natural way to shape something like a chair leg, and I was thinking that in order to make a powderhorn end plug you'd have to shape and subsequently remove what would essentially would be a cross-section of a long pole. Hence, the use of a springpole lathe would dictate the grain direction.
While I was writing out the first draft of this reply, though, it did occur to me that one could use a separate piece of wood to wrap the belt around, and a quick search of youtube confirms that Robin Wood does indeed use a separate piece when turning wooden bowls. Robin's bowls seem to have the grain direction running in the same direction as the drive pole, since he is using a cross section of a tree trunk, but I imagine that one could easily start with a circle cut out of a board, which would give a different grain orientation. So the mystery of how they could make a horn plug with the grain running across the the plug with the technology available to them is answered, I think.
Since you asked about wood grain orientation on original horns with turned butts, the large majority of originals that I have seen, particularly the better quality horns, have end-grain wood. Shelby Gallien
Thanks. I was looking through the Tansel horns on the KRA CD, and where I can determine the grain orientation, it is usually end-grain wood. I was wondering if that was because that was the normal way to turn a plug, or if plugs turned that way just tend to be easier to identify.