there is an old rumor some Mannlicher Schönauer were made in 9,3x57 for sweden back in the days and here is one.
https://www.waffengebraucht.at/waffen/re...l-93x57--590485
I don't know if real and when real new or old. the seller is a gunmaker form the sodia family, will send him a mail about it.

again a Haenel Model 1900 in 8x57I mislabeled as "Mannlicher Schönauer" https://www.waffengebraucht.at/waffen/re...schiene--590282

thats rare, a MS in 8x60 Magnum https://www.waffengebraucht.at/waffen/repetiererbuechse/mannlich-schoenauer-8x60-magnum--513781