:idea2: Some real easy ones are that the print on the back of the shell casing is starting to flatten, along with the primer. Primers are getting easy to punch during the loading process. This means that the pressure has opened up the primer pocket enough to make it a little loose. The head stamp(lettering) and primer flattening are two of the most common signs of high pressure. In a cast bullet load, you should be getting some serious leading from high pressure, due to the smearing from the high velocity. This leading problem will make the pressure curve peak real fast too because it restricts the opening in the barrel. Hope this helps and that you haven't any of these signs. Pressure can be deadly explosive!!