The Probert Encyclopaedia of Warfare

GRAPESHOT

Grapeshot was a former spherical iron shot, rather less than half the diameter of the bore of the piece for which it was intended, and put up in stands consisting of three tiers of three shot each; the stand had a circular cast-iron plate at the top and the bottom, connected by a nut and bolt. Grapeshot was formerly employed for blunderbusses and small artillery.
Research Grapeshot