Finally, comparison means are provided to compare {HEAD ~ the locations} of the target and {TAIL ~ aiming point} 
of
Finally , comparison means are provided to compare { HEAD ~ the locations } of the target and { TAIL ~ aiming point }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL