Akademik

a metallic cylinder packed with shot and used as ammunition in a firearm

: an artillery projectile consisting of a number of balls or metal fragments enclosed in a case — see canister 3

a collection of small projectiles in a case, to be fired from a cannon. Also called canister, canister shot.

[1665-75]

case shot,

the small projectiles contained in a case, as the shot or metal fragments in a canister or a shrapnel shell.

n. historical bullets or pieces of metal in an iron case fired from a cannon