is the screaming eagle the same as the h-250 and 500 if not whats th differance

The Oneida H250 has abs plastiic limb tips and required dacron strings and nylon cams and the Oneida H500 had nylon cams with fast flyte compatable limbs and the oneida screaming eagle cams were made of magnesium and were also fast flyte compatable.
For more oneida bow information you can check the oneida bows charts/manuals section at viewforum.php?f=43
or the oneida bow history section for more information.
viewforum.php?f=21