mk2 


     Caliber = 15.2 cm (6.0 inch) 
     Shell weight = 50 kg (110 lbs) 
     Muzzle velocity = 920 m/s (3016 fps) 

     Relative ballistic performance: 1.00 

     Muzzle energy = 21.141 megajoules = 7790.6 foot-tons 

     Relative muzzle energy: 1.14 

     Barrel length: 55 calibers 


     Elevation          Range         Time      Velocity   Fall Angle 

       2.5 deg        5600 meters     7.6 sec    613 m/s     3.3 deg 
       5.0 deg        9200 meters    14.3 sec    478 m/s     7.8 deg 
       7.5 deg       11800 meters    20.3 sec    406 m/s    12.8 deg 
      10.0 deg       13900 meters    25.8 sec    363 m/s    18.1 deg 
      12.5 deg       15600 meters    31.1 sec    336 m/s    23.7 deg 
      15.0 deg       17100 meters    36.0 sec    320 m/s    28.9 deg 
      20.0 deg       19500 meters    45.4 sec    307 m/s    38.5 deg 
      25.0 deg       21400 meters    54.1 sec    308 m/s    46.4 deg 
      30.0 deg       22900 meters    62.5 sec    315 m/s    52.8 deg 
      35.0 deg       24000 meters    70.4 sec    326 m/s    57.9 deg 
      40.0 deg       24700 meters    78.0 sec    337 m/s    62.1 deg 
      45.0 deg       25000 meters    85.2 sec    349 m/s    65.5 deg 
      50.0 deg       24700 meters    91.9 sec    360 m/s    68.5 deg 


          Armor Penetration - Vertical Belt Armor 

               (Relative armor quality, 1.00) 

               Maximum penetration: 33.73 cm 


     Elevation          Range            Belt       Deck 

       1.2 deg        3000 meters        25 cm
       2.4 deg        5400 meters        20 cm
       4.4 deg        8500 meters        15 cm
       7.9 deg       12200 meters         ...        2 cm 
       8.7 deg       12900 meters        10 cm
      19.2 deg       19100 meters         ...        4 cm 
      23.5 deg       20900 meters         5 cm
      30.2 deg       22900 meters         ...        6 cm 
      43.7 deg       25000 meters         ...        8 cm 


     Maximum range = 25000 meters at 45.2 deg elevation