Blessed bolts

Use this Stratagem in your Shooting phase, when
an ADEPTA SORORITAS unit from your army
is selected to shoot. Until the end of the phase,
each time an attack is made with an artificer-
crafted storm bolter by a model in that unit, on
an unmodified hit roll of 6, the target suffers 2
mortal wounds and the attack sequence ends (a
maximum of 6 mortal wounds can be inflicted
per phase via this Stratagem).