[Poohbah]

My personal preference is #4 shot--good tradeoff of lethality and avoiding over-penetration.

[blackbart.223]

"My personal preference is #4 shot--good tradeoff of lethality and avoiding over-penetration."

The first four rounds in my Remington 870 are #4 buckshot, the last two are oo buck. But I don't live in a situation where a wall in my house will penetrated and wound or kill innocents.