As a slogan lethality has legs.
It does "useful" work in a variety of bureaucratic, industrial and military contexts where it can be employed to structure discussion on technology & doctrine.
It is after all a science & so you'd expect it to be subject to different hypotheses.
To separate lethality from these contexts implies a wider struggle over the ordering of discourse where martial imperatives drive technological, bureaucratic & scientific practices.
But they have revealed that the common martial understanding of what produces death (58ft/lbs of KE) is overkill.
Not a problem when you are fighting the armed forces of another state.
But clearly overkill is a problem if you're engaged in an overseas intervention or counter-insurgency.
Overkill has a function as part of military spectacle, producing disproportionate bloodshed or destruction which in turn has a role in information war & managing popular discourse.
However, overkill & spectacle frame lethality in ways that are not being accounted for but nonetheless will determine the legitimacy of military practice.
Now that Brits have five weeks off I figured I should finally put my thoughts out there!