A user can utilize the ballistic compensation information to compensate for {TAIL ~ various density altitude levels} to adjust {HEAD ~ the firearm scope} 
A user can utilize the ballistic compensation information to compensate for { TAIL ~ various density altitude levels } to adjust { HEAD ~ the firearm scope }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD