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