Obi-Wan Cannoli said:
I remember why I bought it now...it is a patch pulling worm, had to look it up. either way, can't think of a patch so tenacious that I would stick that horror show into my barrel. offer still stands.
I think you may not understand some things about a "Single Tine Spring Coil" type (my description and not the actual name) Worm.
The rounded "wire" from which the Worm is made, barely contacts the bore and slides over it, acting like a bearing surface. So there is not much of a chance it will damage your bore unless you deliberately bend the ramrod to force it to rub hard in the bore.
While one should keep the Tine Point sharp to work the best, there is no need of concern about that sharp point contacting the barrel bore and scratching or harming it, when the Worm is made properly and that sharp point winds up pointing inside the diameter of the Worm. A sharp point better pierces and grabs "stuff" better in the bore whether it be a wad of Tow or a modern cloth patch.
I remember one time that a "Double Tined" Wound Worm was vital in getting a cleaning patch out of a bore in a Repro Brown Bess Musket. A good friend was very anxious to find me when we were lining up before a battle reenactment. He had a patch stuck down in the breech of his Brown Bess and was VERY embarrassed by it. Now, this guy and I were both Senior Retired Marine Staff NCO's and we both took VERY good care of our Muskets. He had used the patch to ensure his bore was dry from oil before we began.
He had a Worm, but it was the wrong size and a little too small for his Bess. Now, he knew to keep the points sharp and they were, but they just did not "catch" the patch. I did not have a Worm with me that day. I tried using his Worm on his Rammer and could not get the patch out, either. So I suggested, "We HAVE to figure this out because as two Retired Marines, we will NEVER live this done if we don't get it fixed."
Took me a couple of minutes before I thought to try using a flash hole pick to hold the patch so the Worm point/s might grab it. Didn't work by myself, so I held the musket with the pick in the vent hole and he used the worm on the rammer. We got it on the second try, MUCH to our relief and then we laughed about how it must have looked like a couple of goobers.
Anyway, I suggest you keep that Worm if you have a ramrod that fits it or cut threads in the rod like Spence showed you. You may never get a patch stuck down at the bottom of the bore, but if you do, a good Worm will get it out and can be helped by using a Vent Hole Pick, if necessary.
Gus