While coming home from vacation we went through Nebraska.
We stopped at a pioneer museum, and it was one of the highlights of the
trip. It wasn't pioneer as in sodbusters, but it was pioneering inventions
and such. Anyways, a great place to see. Here is this little jewel,
an antique rifling machine. This would be difficult to construct, but
would work nicely. The metal rod (right side of pic 2) would have a cutter
on it that would rifle the barrel. I highly doubt if you could ever match
the precision of the riffling at spudtech, but it could work good on small bore,
or larger bore barrels that are not machined there. Here are the pics,
Click for a bigger picture
for a bigger picture
If anyone has details on how riffing machines such as this were constructed,
please let me know! My email can be found on the misc. page.