{HEAD ~ Previous laser related art} used {TAIL ~ a sensor} to record or display a shots placement, not activate an electro mechanical device to advance a fresh target into position 
used
{ HEAD ~ Previous laser related art } used { TAIL ~ a sensor } to record or display a shots placement , not activate an electro mechanical device to advance a fresh target into position
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH