In a sabot projectile, {HEAD ~ a projectile core} is held fast in {TAIL ~ a sabot} 
is held fast in
In a sabot projectile , { HEAD ~ a projectile core } is held fast in { TAIL ~ a sabot }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL