I have notice lately when resizing my brass, some pieces are still warped. I have tried to insert some loaded rounds in my Hornady concentricity gauge but 9mm is too short for that. Some of this bent brass is new, never been fired Winchester brass. I believe it's caused by the low budget dies I have may not be fully resizing the cases. With 9MM dies still hard to come by, what should I get to replace the low end Redding dies? I'm still loading on a single stage press. Loaded rounds will be used for local competitions / bragging rights only.