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Original: 2,723 fps (830 mps)
USA Charge: 2,625 fps (800 mps)
Range Tables: 2,575 fps (785 mps)
Many references claim that this was the fastest firing large caliber gun ever built. The ROF figures listed above represent generally published data that would support that claim. However, Krupp official documents cite the ROF as being 26 seconds at a four degree elevation, not notably faster than that of other nations' large-caliber weapons. Note that at this elevation the range would be considerably less than 10,000 meters. It is possible that well trained gun crews would reduce this time to the 20 seconds necessary to meet a ROF of 3 times per minute. A May 1941 report by the German Artillerieversuchskommando - AVSK (Artillery Testing Command for Ships) stated that the turret ammunition hoists on Bismarck were capable of delivering between 23 and 25 rounds per minute (for all four turrets), the equivalent of 3 rounds per minute per gun. However, this same report stated that design faults in the hoists led to two significant breakdowns during the evaluation, both of which caused long interruptions in the ammunition supply. Finally, it should be noted that Bismarck fired a total of 91 rounds during her thirteen minutes of firing at the Denmark Strait battle, which is actually less than one round per gun per minute.