{HEAD ~ a projectile core} retained in {TAIL ~ said sabot} and having a front end; and 
retained in
{ HEAD ~ a projectile core } retained in { TAIL ~ said sabot } and having a front end ; and
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH