
M12Development of the SPG started in the second half of 1941. The prototype underwent trials on February 12, 1942 and saw service in July 1942. The Pressed Steel Car Company produced 100 vehicles. Baldwin Locomotive Works modified the SPGs and re-equipped some M30 carriers. The vehicle saw service in the field artillery battalions and was used by the U.S.A. forces in Western Europe.
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155 mm Gun M1A1 (M12) (damage per shot: 600):
155 mm Gun M1918M1 (damage per shot: 600):
515
716
892
1049


155 mm Gun M1A1 (M12) (damage per shot: 600):
155 mm Gun M1918M1 (damage per shot: 600):
Expected
frags:
0.93
Expected
spot
0.05
Expected
defense points
1.08
Expected
winrate
51.87%












Tier VII field modification
available for tier IX-X tanks
Tier VIII field modification
available for tier X tanks
-3% to dispersion during gun traverse
+3% to engine power
+4% to dispersion during movement
+5 km/h to top forward speed
-7% to concealment after firing
-5% to dispersion on gun traverse
+5% to dispersion on hull traverse