There has been some discussion on other rimfire boards about stainless steel cleaning rods causes bore damage ... referred to as cold welding (magnetic) or galling. I have used polished stainless steel cleaning rods from various manufactures, with a tight fitting aligned bore guide, and never personally experienced any problems with bore damage. The whole purpose of using a tight bore guide is to prevent a straight stainless steel cleaning rod from contacting the lands or grooves of the bore when carefully pushing a cleaning patch through it. It would appear to me that running a dry patch over hardened gritty (glass) rimfire fouling would cause more galling damage to the internal surface of the bore, than the alloy composition of the cleaning rod itself. This is a link to an article on galling: http://en.wikipedia.org/wiki/Galling Can anyone provide a photo of what this cold welding / galling damage looks like in a rimfire bore? John