It has the high explosive filler replaced with inert ballast to keep it at the same weight and flight properties.
It relies upon a concentration of the effect of the explosive filler through its shape.
In fact, she had a pretty shrewd notion that the more optimistic visions of explosive filler for cast-iron shells were doomed to disappointment.
The high explosive projectile contains a high explosive filler.
An "explosive" bullet contains an explosive filler that detonates on impact.
It fired 50 kilogram (110 lb) HE shells, which contained far more explosive filler than ordinary artillery shells of the same caliber.
The blue color made them exercise units, but from the tag on the pallet it was clear that they were also loaded with the customary explosive filler.
In practice the majority of M61 rounds were shipped without the explosive filler.
Models made from 1918 to 1942 have a 3/4"-threaded baseplug to insert or remove the explosive filler.
PBXN-109 is a less sensitive explosive filler.