this is very interesting and iirc, this is very first factory made hunting rifle for the 7,65x53 I have ever seen pics.
think this is an underrated medium cartridge somewhere between 308 and 8x57.
if you have the chance to made pics of other original hunting rifles for the 7,65 argentine ...
wonder where they get hunting cartridges, never see this round in german catalogs - kynoch?

take the freedom to make it more comfortable