[akerl_]

If I’m loading a shotgun for for home defense: somebody has broken into my home.

As per my comment above, how I load my shotgun is mostly based around my willingness to inflict harm on somebody who has broken into my home. If I’m trying to limit impact, bird shot is lovely. If not, just load the whole tube with buck shot or slug or similar.

But trying to pre-plan an escalation of force via the shotgun tube ordering is a fools errand.

Police have an escalation of force via visibly different tools. A suspect can see the difference between a stick and a taser and a gun. And a cop can choose to draw any of these in any order. Stacking the tube locks you into a specific sequence that you have to remember and that your assailant can’t know.