 Summed up, the 76 mm offered about of added armor penetrating power for a possible loss of some ground attack fire-power.In a meeting in April 1944 held to discuss the assignment of the first production M4(76M1) tanks received in Britain to units, a presentation comparing the 76 mm to the 75 mm went over similar points, adding that the 76 mm was more accurate and did not have an appropriate smoke round.The 76 mm obscured the target with smoke and dust.