Britain
Antitank SP76mm M10

Tweet The Antitank SP76mm M10 was designed in 1942, manufactured by General Motors based on the existing fully tracked M4 Sherman and was in use from 1942 to 1945. General Details Specifications Operational Date(s) 1942 - 1945 Quantity Produced 6406 Weight unknown Crew 5 M.G's small n/a M.G's large(>10mm) 1 Length 6.03 mtr Width 3.08 mtr Height 2.49 mtr Engine Details/Performance Max Road Speed 30 mph Max Cross Country Speed 20 mph Range Road 322 miles Range Cross Country 128 miles Fuel Type Diesel Fuel Capacity 165 gal Horse Power 375 hp Power/Weight unknown General Information The Antitank SP76mm M10 was designed in 1942, manufactured by General Motors based on the existing fully tracked M4 Sherman and was in use from 1942 to 1945. The vehicle was powered by General Motors '6046 twin' diesel powerplant producing 375 HP which could drive the vehicle on roads at up to 30 mph with a range of about 322 miles before refuelling. Its cross country performance was good providing a max speed of about 20 mph and a range of about 128 miles. It was armed with 1 large machine gun consisting of 0.5 inch Browning Machine Gun M2 Its main armament consisted of a 3 in Gun M7 L/53 which could penetrate 130 mm of flat plate at 400 metres . This was the American M10 as built, and supplied on a Lend Lease basis. The turret was manually rotated and was open, so was not as fast to rotate as other models, and suffered from grenade and mortar attacks. Initially there was no provision for indirect fire, but this was resolved in later models and retrofitted. Armour Details Turret Front 57mm @ 45° (81mm) Side 25mm @ 75° (97mm) Rear 25mm @ 0° (25mm) Top 19mm @ 90° (19mm) Superstructure Front 38mm @ 35° (46mm) Side 19mm @ 52° (31mm) Rear 19mm @ 52° (31mm) Top 19mm @ 90° (19mm) Hull Front 51mm @ 34° (62mm) Side 25mm @ 0° (25mm) Rear 25mm @ 0° (25mm) Top n/a Armour (x)mm @ (y)° (Effective mm @ 0°) Effective Armour - Maximum 97 mm - Minimum 0 mm Weapon Details 0.5 inch Browning Machine Gun M2 (Machine Gun) Calibre 12.70mm Rate of Fire 480 rpm Number of Rounds  300     Ammunition Details Name/Id Calibre Weight MVelocity Explosive Content MG (AP Standard Small Arms) 12.70mm 0.04Kg 884M/Sec Quoted Penetration 29mm @ 100mtr/0° Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.13 0.28 0.67 2.46 Penetration(mm@30°) 19 15 12 5 Penetration(mm@0°) 22 18 14 6 Hit Probability(%) 98 98 98 48 Weapon Details 3 in Gun M7 L/53 Calibre 76.20mm Length L/53 Number of Rounds  50     Ammunition Details Name/Id Calibre Weight MVelocity Explosive Content AP (AP Armor Piercing) 76.20mm 7Kg 792M/Sec Quoted Penetration 84mm@2000m Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.13 0.26 0.53 1.13 1.8 2.56 3.42 4.42 Penetration(mm@30°) 132 122 112 98 86 74 64 53 Penetration(mm@0°) 153 142 130 114 100 86 74 62 Hit Probability(%) 98 98 98 96 77 44 25 15

Hit probability is based on a static 2 x 2.4 metre panel at 0 degrees(vertical) at the range specified.

The data that has been used to create these records has come from Wikipedia, The Lone Sentry, The Bundes Archive and numerous books and websites that have provided the detailed information that has not been available anywhere else. The information we use to calculate the penetration tables, flight times and the hit probability comes from the Gun Calibre, the Shell Mass(Kg) and the muzzle velocity, plus range reductions to allow for gravity and wind resistance. This calculation originally came from a pre-war Krupp calculation which has been modified, and seems to fit the actual test results.

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