The old misconception about shotguns still persists, thanks to Hollywood's ridiculous portrayals of their effects. Most people will tell you that you don't need to aim with a scattergun because you just point it in the direction of your adversary and fire, supposedly the buckshot will spread so rapidly that anyone in the room will be hit. This idea no doubt comes from watching too many bad movies.
As anyone here knows, the shotgun pattern, even from an open choke, is only a couple inches or so inside an average room, and it must be aimed just as a rifle would at the same range. Well, maybe not actually aimed, but pointed if you're a point shooter.
I'm pretty sure that a shotgun would be as effective as anything, but nothing is 100%. I remember reading in one of Bill Jordan's books where his partner shot a Mexican bandito in the chest with a 12 gauge load of 00 buck at close range, and the guy kept on firing back for quite a while. Jordan did make some comment about this being one tough hombre though.
To answer the question of the topic, I would choose a 20 gauge pump if I was forced to get by with just one home defense gun. The small gauge is because my wife might have to use it and I think the effectiveness would be sufficient for most situations.
As anyone here knows, the shotgun pattern, even from an open choke, is only a couple inches or so inside an average room, and it must be aimed just as a rifle would at the same range. Well, maybe not actually aimed, but pointed if you're a point shooter.
I'm pretty sure that a shotgun would be as effective as anything, but nothing is 100%. I remember reading in one of Bill Jordan's books where his partner shot a Mexican bandito in the chest with a 12 gauge load of 00 buck at close range, and the guy kept on firing back for quite a while. Jordan did make some comment about this being one tough hombre though.
To answer the question of the topic, I would choose a 20 gauge pump if I was forced to get by with just one home defense gun. The small gauge is because my wife might have to use it and I think the effectiveness would be sufficient for most situations.