I don't know much about these old Mosins though. Are they pretty accurate? Yours looks awful clean. I assume it shoots 7.62x54? What are the big differences between the Chinese and other variants?
7.62x54r
The Russians sent the tooling to China to make these then a lot of them saw battle in Algeria before making it to the US. Most like the Chinese version due to them not being rearsenaled in the 70's like most of the Russian Rifles.
They are hard to find in good shape and even harder for matching #'s. Bolts are smooth and the triggers are great only 2nd to the Finnish Rifles.