As the OP I apologize for making this such a complicated question. All I wanted was some ideas as to how to make an 'intelligent' target that will be able to say 'that shot was in the 9 ring at 2 O'clock or that shot was a bullseye' and perhaps report the coordinates of where the bullet passed thru the plane of the target. Of course the intelligent target must have a paper target for the shooter to aim at. But the scoring would be done by the 'Intelligent Target' not an observer. Vic -- ______________________________________________________________ Victor Fraenckel KC2GUI windswaytoo ATSIGN gmail DOT com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist