The present invention solves {HEAD ~ several issues} related to firearm and related projectile practice, competition, and {TAIL ~ training} 
related to
The present invention solves { HEAD ~ several issues } related to firearm and related projectile practice , competition , and { TAIL ~ training }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL