Dirt Weasel,
When I first got a Lyman GPR in .54 I saw one of the new Delrin rods. So of course I bought it. Cleaned the bore before shooting using the Delrin rod. Went to the range loaded first shot, all was great. Before the second load I thought I would wipe the bore. Delrin rod, cleaning patch, and a little Moose milk. Well the damn thing stuck. Guy shooting next to me had some vice grips. No way was the ram rod coming out. Went home and put the rod in a vise. Almost pulled my work bench over. Soaked it for a week with Kroil. Finally came out. The delrin rod has never been used since. Got a stainless rod with a brass bore guide. Use it on .40, .45, .50, and the .54 without any problems. Oh, the cleaning patches I use are the same one's I used with the delrin many years ago. Never did figure out why that delrin stuck, but I'll never use it again.
Mike C.