It is true the term derived from the use of pulled horse shoe nail stubs, often used with a mixture of chopped coach springs of approximately the same size pieces as the stubs for a steel content, the stubs being made of wrought Iron. As Drew mentions William Greener (Father of W W Greener) described both Stub Twist & Stub Damascus. The fact the bars for winding into the bbl thus consisted of smaller pieces having been welded first, thus produced a decided difference in the pattern than those bars consisting of longer strips. One thing of interest in W Greeners book, "The Gun 1834" was he took prepared rods of several varieties, prior to them being wound into a tube, & pulled them until they broke. By taking the size of the bar vs the lbs required to break it we can calculate the tensile strength of the bar. Stub Twist bars equalled 76,458 psi tensile.
