FWIW I've heard the Weatherby's are among the better of the Turkish guns. One source I found said they were made by Armsan, another said ATA. I suppose it is possible that different Weatherby models are contracted out to different Turkish factories.
Anyway, I've had an Armsan RS-X2 pump for a few years and the two guns certainly look the same. I haven't put a huge number of rounds through the Armsan but it hasn't had any issues and it seems like a decent gun.