Since you are getting academic about the topic, the term "overkill" was a term of military origin and used in the description of nuclear destruction. Even the extensions of the term was, and is still applied in a predominantly in a military context.
If you really wanted to get technical about the topic, and take the liberty of spin that you have applied, a more appropriate example of your use of the term "overkill", in our shooting world, is the use of a 22 rimfire for hunting rabbits. Using a 100 foot pounds of energy, 22 LR round, on a two pound rabbit would roughly equate to 10,000 foot pounds of energy used on a 200 pound whitetail.
I think you can make a better case for your argument in the rimfire section of this forum (LOL)
