The problem of lubricating extractor shafts or the holes has always been should I or shouldnt I problem. My thumb opener Purdey has a rather unusual method of operating the extractors which are situated vertically between the two barrels via a linkage which is operated by a cut out in the action table. After using oil for some years I did notice that there was an accumulation of dirt in the linkage after a couple of days in the field, so my cure which I have been using now for many years is Dry Gear Chain Lubricant it is clean dry and works extremely well and does not attract dirt and grit.
