RE: Sticking cases
It sounds like excessive headspacing. In any rate its not normal and should be returned or checked out by a good gunsmith. It could be dangerous for sure. I had one do that but it was only after some high pressure handloads. In my case it was underloads of slow burning powder. I had to send the gun in and have it checked out and re- headspaced. I ended up having it reballeled.