The Queen Elizabeth class supplies the 15-inch example, with a shell width described as almost the distance across a chest. This is the next increase after the Orion and 14-inch comparisons. The joke about how much a hit would hurt then leads into the larger 16-inch example.
Notable Point · 0:45-0:59
The Queen Elizabeth class's 15-inch shell width
The Queen Elizabeth class's 15-inch shells are illustrated as almost the width of a chest.