Patented by the US Navy and NSWC Dahlgren
However, the Mk258
Mod 1 projectile is fin-
stabilised, based on the
same components as the
MK258 Mod 0, which was
designed for use with the
Norwegian Armed Forces
CV9030N combat vehicle.
The only modification
is the nose shape of the
tungsten penetrator,
which was patented by
the US Navy and NSWC
Dahlgren, but never
turned into functional
ammunition.
SA Artillery