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United States' 240 mm Howitzer M1

 

  240 mm Howitzer M11
Caliber 9.45"2
Length of gun 27' 7"2
Length of bore  
Rifling  
Length of rifling  
Weight traveling  
Weight in action 64,700 lb1
28.88 tons2
29,345 kg1
Elevation 65°2
Traverse 45°2
Muzzle Velocity 2,300'/sec2
Range of shell 25,168 yards1, 25,225 yards2
23,000 m1
Shell weight 360 lb1,2
163.3 kg1
Armor penetration  
Breech mechanism  

Sources:

  1. US Army Handbook 1939-1945, George Forty, 1995
  2. Allied Artillery of World War Two, Ian V. Hogg, 1998
20th Century American Military History Crucial Site