The comparison sets shell weights against ten-minute firing totals for British cruiser types. Although an eight-inch shell was much heavier, a Town or Crown Colony class could put far more rounds into the engagement, improve its spotting solution faster, and multiply its chances of damaging hits. The chart uses total shell weight rather than bursting-charge weight, though the six-inch comparison still comes out slightly ahead on explosive because eight-inch ammunition is more strongly oriented toward armour piercing. At expected ranges, the six-inch cruiser appears to be a practical combat optimum, while a well-handled eight-inch cruiser retains advantages in range and hitting power. The resulting fleet balance is mostly six-inch cruisers backed by a smaller number of eight-inch ships, rather than the elimination of the heavy cruiser.
Notable Point · 19:34-26:08
Six-inch volume of fire versus eight-inch weight
A rate-of-fire comparison shows why more six-inch shells could outweigh the individual power and range of eight-inch rounds.