That’s awesome and weird.
I have a 1942 Mosin made in Tula, but more arcanely, I inherited a few WW2 rifles from grandpa in law, who was into that.
All I remember is one is chambered in 7mm mauser and another might be Italian. They grace my wall and add a touch of elegance that I otherwise lack.
I’d like to shoot them someday but want to find rounds with less powder.
privi (now PPU) makes good lower power ammo compared to the old military stuff. ( I like to shoot period ammo if possible).
For Mosin info try http://www.7.62x54r.net and more in depth http://mosinnagant.net (not updated lately)
For Italian try here:
http://www.carbinesforcollectors.com/carcanopage1.html