the germans really liked those long barrels, there is a gun like your on simpsons ltd. site i think in 8x60 and as don said they are reffered to as "african stlye" at least by the mauser oberndorf co. that is not to say that yours is an original oberndorf, many different companies built them. i have a 28" barrel 11.2x60 schuler with full express sights. many were built in 9.3x62......paul