Re: Weapon mastery not increasing kills not counted towards it. stuck

I'm having the same issue as well, on Steam-PC.  My DM-7 rifle is stuck at 150 kills but the level advancement from 120 kills still hasn't registered either. 

I tried everything from restarting my game, computer, validating files, deleting the game and redownloading, then revalidating the files even after that.

I seem to be stuck, and this EA help website itself is less help than what they had when I was able to speak to a live support person.