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French 7.9"
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This gun is the main armament of the Suffren class heavy cruisers, now under construction.

         French 200mm/50

     Caliber = 20.0 cm (7.9 inch)
     Shell weight = 130 kg (287 lbs)
     Muzzle velocity = 808 m/s (2650 fps)
     Relative ballistic performance: 0.90
     Muzzle energy = 42.414 megajoules = 15629.7 foot-tons
     Relative muzzle energy: 1.00
     Barrel length: 50 calibers

     Elevation          Range         Time      Velocity   Fall Angle
       2.5 deg        4900 meters     6.9 sec    624 m/s     3.0 deg
       5.0 deg        8400 meters    13.2 sec    520 m/s     6.7 deg
       7.5 deg       11200 meters    19.1 sec    454 m/s    11.0 deg
      10.0 deg       13500 meters    24.6 sec    411 m/s    15.6 deg
      12.5 deg       15500 meters    29.9 sec    383 m/s    20.3 deg
      15.0 deg       17200 meters    34.9 sec    364 m/s    25.0 deg
      20.0 deg       20000 meters    44.4 sec    346 m/s    33.8 deg
      25.0 deg       22200 meters    53.3 sec    343 m/s    41.4 deg
      30.0 deg       24000 meters    61.8 sec    348 m/s    47.9 deg
      35.0 deg       25300 meters    69.8 sec    357 m/s    53.2 deg
      40.0 deg       26200 meters    77.5 sec    369 m/s    57.8 deg
      45.0 deg       26500 meters    84.7 sec    381 m/s    61.6 deg
      50.0 deg       26200 meters    91.5 sec    393 m/s    65.0 deg

          Armor Penetration - Vertical Belt Armor
               (Relative armor quality, 0.90)
               Maximum penetration: 46.93 cm

     Elevation          Range            Belt       Deck
       1.0 deg        2200 meters        40 cm
       2.1 deg        4100 meters        35 cm
       3.4 deg        6300 meters        30 cm
       4.8 deg        8100 meters         ...        2 cm
       5.4 deg        8900 meters        25 cm
       8.4 deg       12100 meters        20 cm
      10.2 deg       13700 meters         ...        4 cm
      13.8 deg       16400 meters        15 cm
      17.5 deg       18700 meters         ...        6 cm
      23.2 deg       21500 meters         ...        8 cm
      25.7 deg       22500 meters        10 cm
      29.3 deg       23800 meters         ...       10 cm
      35.9 deg       25500 meters         ...       12 cm
      43.1 deg       26400 meters         ...       14 cm

     Maximum range = 26500 meters at 45.4 deg elevation


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