For the $ you spent on it, if it is indeed a Russian rifle you got a steal.
If you meant that the rifle shoots a Russian round, ok. My guess is that the cost of your rifle means it is probably of Chinese manufacture, and that doesn't mean it's bad. If Chinese you stil got a good price depending on condition and matching #'s or not.
I have 3 Chinese rifles and all are quite good. There are some arsenals that did not turn out great weapons, but congrats on your purchase. They are very much a fun rifle for plinking. Even if you get a good deal on bulk ammo though it aint' exactly dirt cheap to shoot unless you start getting serious with a progressive loader. Once you start having fun letting loose 10 shots or more quickly, you'll be hooked.