Embodiments of the present invention relate generally to systems and devices for resolving {HEAD ~ factors} affecting the trajectory of a bullet fired from {TAIL ~ a firearm} 
Embodiments of the present invention relate generally to systems and devices for resolving { HEAD ~ factors } affecting the trajectory of a bullet fired from { TAIL ~ a firearm }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL