On the plastic removal question. Some years ago I shot maybe 100 foreign 28 gauge shells one afternoon. Not black powder, but very dirty. At clean up time I found the bores were coated with plastic as well as the powder residue. A bronze brush, probably oversized, and Hoppe's 9 did not seem to help much so I put the brush on an electric drill. That helped some, but still the plastic mostly stuck. Finally, I tightened the cleaning rod and bronze brush joints and ran the drill backward. The plastic then just augured out .
Last edited by Daryl Hallquist; 07/10/18 02:53 PM.
