{HEAD ~ Additional nomographs} are provided for the determination of {TAIL ~ slope}, i.e. difference in elevation between the firearm and the target, and density altitude 
{ HEAD ~ Additional nomographs } are provided for the determination of { TAIL ~ slope } , i.e. difference in elevation between the firearm and the target , and density altitude
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH