[Vigilanteman]

This guy's face would look good with a slug in it, don't you think?

Nah, too messy and a waste of ammunition. Ropes are reusable and can be adjusted according to the perp-- humane neck breaking long-drops for the petty killers and slow strangling short-drops for the vicious ones.

[skepsel]

The noose is also ecologically friendly, energy efficient, and as you said it's reuseable. There is also a historical association of dishonor for those hanged; traitors, rebels, spies, and common criminals usually got the gallows.
The Royal Navy wouldn't use either the short or long drop, the condemned were run up to a yardarm from the deck, strangling slowly.
Unfortunately for those of us with a traditionalist bent I think the military now would use lethal injection in all but a situation of wartime battlefield summary trial and execution.


skepsel