[Atlas Sneezed]

Also, for indoor home defense, a smaller shot is still capable of killing an intruder and less likely to pass through interior walls and injure/kill valid occupants,

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Some of what you write suggests you may be under the mistaken impression that shot spreads out more than it does. Even in the longest interior household range, that shot will still all hit in the area about the size of a salad plate. Small shot is not "less lethal" unless it is falling from the sky after shooting at a bird, or maybe after a pellet ricochets.

[Bear_Slayer]

Smaller shot, passing through interior walls is, in my opinion, safer than .32 caliber 00 passing through those same walls.