 The gun could penetrate of unsloped RHA at and at using the usual M62 round.The M1 helped to equalize the Sherman and the Panzer IV in terms of firepower; the 48-caliber 7.5 cm KwK 40 (75mm L/48) of the Panzer IV could penetrate of unsloped RHA at and at .The 76 mm gun was still inferior to the much more powerful 70-caliber 7.5 cm KwK 42 (75mm L/70) of the Panther, which could penetrate of unsloped RHA at and at using the usual PzGr.39/42 round.