Didn't jam. Serviced targets on the move. It works.
Hmmm, can't be ...doesn't match with what I read on the Internet.
BTW, an historical perspective may be in order: The M-4 Sherman was clearly inferior to the German Tiger and Panther, and probably the MkIV as well, but American soldiers figured out how to use what they had to best advantage - moral of the story - training, leadership, and initiative usually trumps technology.