Been working these things , kind of hard to describe my developed procedures but I'll try here...Richard in NY will post some photos to this thread to illustrate a bundle and the "strands" that make it up.. I used a Otis pull thru so the strands are pulled . If one used as solid ram rod, the strands will bind up around that rod and you got a stuck rod in bore for sure. Here is my procedure
556 caliber, thread 4 strands thru patch loop and then tie ends of strands in a over hand knot. Not a full knot which is tying twice , only a over hand like when you begin to tie your shoes before you go forth with doing the bow . Then the strands have bite in barrel and will clean grooves and not fall out of loop**** (more on that in a moment)
308 cal (30 calber) use 8 strands thru patch loop, same over hand knot and same results.
**** If you don't do the over hand, you have to use twice as many strands and one or more could slip out of the patch loop in your barrel and now you got a real drama getting 1 or more loose strands laying inside your barrel. Over hand knot avoids this risk.
As you know 16 strands are held together to make 1 Bundle. I'm thinking these bundles are made this way for use on 50 caliber barrels where you loop bundle thru patch loop and pull thru 50 caliber barrel. I really don't think these are made to be used for small arms but of course they can be adapted as I have done to clean small arms. I did not need Tweezers to thread patch loops and I will admit the strands as looped on my Otis pull thru cable scrubbed lands & grooves of barrel very well. There is a lot of material making contact and riding the lands where regular patches are dragged over the lands for the most part.
I think these strands have a ton of merit in cleaning 22 rifle barrels and pellet rifle barrels by the way.
I would not use these with a solid ram rod as it will certainly jam up hard in barrel. A loose strand or two that somehow lays up in ones barrel could be darn hard to remove...a drama to avoid..
Worth messing with...sure, price is cheap, and if used with limitations , they will clean barrels well if one has the right gear. Threading patch loop was not the drama I thought it would be. Easily done.