Modification of the Grizzly (M4A1 Sherman) tank, mounting the British 25-pounder field howitzer. Mass production was launched at the Montreal Locomotive Works in Canada, with 2,150 vehicles manufactured from 1943 through 1945.
Time for the successive autoreloading of each shell into the magazine.
The technical characteristics shown are for the Siege mode
Characteristics are specified for a vehicle with crew members trained to 100%.