ONE 5.56 MM ELP FULL LENGTH JAVELIN SPIKE CARTRIDGE. HEADSTAMP WINCHESTER 223 REM. FLJS (Full Length Javelin Spike) projectile uses old-school technology providing that little added penetration with its full length spike. Because of specialized Product Engineering this projectile for a more arrow/spear spike effect, is designed so the core slips easily through the primary projectile body on the slightest impact yet keeps going to control those Varmints and Predator when they line up on top of hill. 3-5 in a row, E-Z Deal.