Brown Bear (lacquered steel case), as well as Silver Bear (nickel plated case), are both made in Russian, by the Russian Cartridge Plants Association. This association is made up of The Barnaul Machine Tool Building Plant, Klimovsk Stamping Plant, Novosibirsk Low Voltage Plant, and Ulyanovsk Machine Tool Plant.
Novosibrisk LVP, is the plant that makes the popular green box Makarov ammo. I know nothing of the other 3 plants.
Wolf is manufactured at the Tula Cartridge Works, a plant not associated with the RCPA. Therefore, Bear is NOT Wolf, but it could be Novosibrisk LVP. There is also a very good chance that the batch you get is made at one of the other three unknown plants.
Personally, I wouldn't have any problem trying Bear in my Mak or AK, as they where designed for this type of ammo, but wouldn't allow it anywhere near the rest of my firearms. There have been too many reports of the case laquer melting in hot chambers, causing a horrible, sticky mess. Not to mention the reports of steel casings having to be beat out of guns, and accelerated chamber wear due to the harder, steel cases.
With so many other quality, brass cased, value priced ammo out there, I don't think this stuff is worth the risks.