It could also fire canister shot and spherical case shot. The spherical case shot released 37 musket balls when it burst. Case shot was effective up to 400 metres. As a result, its early designation was "spherical case shot". He stated that he then went on to rout some infantry with case shot. Charging into intense musketry and case shot, the elite grenadiers broke into the hedgerow position. Case shot broadly describes any multi-projectile artillery ammunition. The 10-pounder Parrott rifle fired case shot (shrapnel), shell, and canister shot. The 20-pounder Parrott rifle fired case shot (shrapnel), shell, and canister shot. The 3-inch rifle fired case shot (shrapnel), time and percussion shell, and canister shot. The medium and light rockets could be case shot, shell, or explosive. As Rawdon's attack approached, Harrison's masked battery cut loose with case shot, halting the British.