ORIGINAL: SaskBushMan
what I am looking at has a 1:28 twist synthetic stock boltaction. It has a blued barrel but the inside of the barrel is nickel plated.
I think the barrel is hard chromed not nickel plated. Chrome lined barrels are a standard sort of thing with the Chinese most of the SKS have chrome barrels. Apparently they have a lot of corrosive ammo. My SKS is a rough machined thing that shoots great and it is a Norinco manufacture.