I received a Redding powder measure from a fellow member a while back, and I am not 100% sure on the model number. The screw is not the correct one for it and it will only throw ~5gr of HS 6 even with the screw out of it. Is it something wrong with the chamber where I can just clean it out or will simply replacing the screw with the proper one allow for greater adjustment? Or do I just call Redding?