TCooper wrote:
Try using 0.080” nylon weedwacker cord with the ends altered to “poke and pull”. Cut one end to a sharp angle to create a wedge shape that easily penetrates the cotton flannel patches. The other can be melted with a common disposable lighter and pushed against a pellet tin lid to form a flat disc. The disc can be shaped with fine sandpaper and a nail file to make a pad for the patch to sit against when pulling through the bore. The precise shaping of the disc is what takes the most time and requires repeated checking during manufacture to achieve the snug friction fit in the bore (with patch). I made a .177cal and .22cal about 20 years ago and they are still working fine.
I've tried making these but the melted end keeps breaking off. Perhaps I'm using the wrong material of weedwacker cord? I don't think that I'm overheating the wacker cord, as have experimented, but open to advice.
I ordered some of the "woven" ones from AliExpress, shortened the brass drop weight to pass the magazine opening in the PCPs and have used those.
Not altogether happy in not being able to just pull a cotton patch, so I take a coated cleaning rod to the range.