Serial number 31022 22shp now changed to 31056 5.6x52r. Serial number 31122 22hornet now changed to 31022 22hornet. Something to do with proof house not happy for purdey to stamp new rifle with obsolete calibre ie 22shp. Am still happy with serial number line up. 31010----31022----31028----31056----31300----31303----31375----31500----31600. Will visit purdey in June 14 and 2 may be complete.