Out of curiosity, would there be any harm in using weed eater cord to pull through with an oil soaked patch? I have been doing this on ocassion with my M1A TRW barrel along with a few 22's and never really thought about it harming a barrel. The procedure is to melt one end and form a ball so the patch will not come off then sharpen the other end so the patch can be stuck on.
Cheers,
Shawn
Cheers,
Shawn