Tom I've been using a variation of this. I use a line from a weedeater. I'm considering moving to a rod and stiff nylon brush and patches."Tominco"Thick fishing line with a sharp crease. Send the crease in through the end of the barrel, catch the patch at the breech, and pull it through. If you have an LDC, use a drinking straw to stop from losing the patch. Just run it through the straw first and then on the way out the patch will catch on the straw and everything will come out.
I've got a whole spool (but, I don't fish!) and would be happy to send you a bunch. Just shoot me a PM with addy.
Tom