400 Nitro Express:
Thank you for your warning, etc., much appreciated. I received this gun from Germany last week and have not yet researched the matter so deeply. So now I understand that .25-35 Winchester and 6.5x52R are not considered the same, at least not by CIP.
But I still dare to think that these two cartridges WERE considered one and the same thing in the times when my Rasch was made (1920s). I have access to a few catalogs of well known Austrian gun companies of the period and therein they are quite obviously considered one and the same thing. One example: In 1927 catalog of Tiroler Waffenfabrik Johann Peterlongo Innsbruck there stands "25-35 Winchester (6,5x52mm)". (At that time R for rimmed cartridges was not yet commonly used in Austria). By the way, the cartridge illustrated in marked "25-35 Velo".
With kind regards,
Jani