Today we present a British report from 1944 comparing the performance of 75mm and 76mm ammunition used by the different variants of M4 Sherman tanks and British vehicles equipped with the QF 75mm gun (Cromwell, Churchill.)  This report was photographed by a friend of the site who was doing some archive digging over in the UK.  The armor penetration figures are not particularly interesting since these figures are quite well known.  Of more interest is the data on the H.E. rounds.  While it is generally stated in most sources that the 75mm gun had a superior H.E. round compared to the 76mm gun, few books give actual data as to how these H.E. rounds differed. For your reading convenience, we have provided a transcript of the report as well as images of the original photos.

Army Operational Research Group Memorandum No. 415

Comparison of the Performance of 75mm.  and

76 mm. Tank Gun Ammunition

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