My older brother bought a bunch of the stuff in 9x18 when he got his Makarov, we shot all of it up and it seemed ok in that application. I believe that it is not brass cased sometimes has some corrosion problems with the cases. They are Berdan Primed, which i belive means that they can not be reloaded. It really depends on what you intend to shoot it out of. With a lot of the Russian made ammo it seems that if you feed it to weapons from the same region, Makarovs, AK's (MY Romanian WASR loves Wolf) , Makarovs, they they will eat the stuff all day and with a good cleaning will prolly be fine, but sometimes American weapons have problems with this ammo.
Heres a page I found that had some info, trust it or not.