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