How did six-inch and eight-inch cruiser guns differ ballistically?
Short answerEight-inch guns reached farther and penetrated more, but numerous six-inch guns could deliver more damaging hits at the shorter ranges the Royal Navy considered likely.
NotesEight-inch guns offered greater range and penetration, but only if visibility and fire control allowed ships to exploit that reach. At the engagement ranges the Royal Navy expected, six-inch penetration was often close enough for a higher volume of fire to cause more damage. The choice therefore reflected probable fighting conditions, not a belief that the smaller shell was intrinsically superior. Twelve six-inch guns made the Towns a deliberate bet on hit volume within realistic visibility limits.