I have a Stiller Tac 30 in 6 dasher that I purchased off of the forum. It’s a nice rifle. My only complaint is that the bolt binds when I cycle it. Does anyone know what causes this and possible solutions there maybe? The action is already broken in since it has 400 rounds fired on it from the previous owner. I tried calling Stiller today but no response and no call back. Thanks a lot for your help. Edit: sorry additionally, The receiver is painted from the factory, I tried heavy grease on the guide rail, and I tried it with and without the AICS mag in.