That's why I use rounds that provide a level of penetration john holmes would approve of, that said, an 11 shot 870 is in the back loaded to the gills with 9 copper plated 20 pellets each of #1 Buck, with two Brenekke KO slugs bringing up the rear.
Man,I would not want to be anywhere near the receiving end of that load.
It's a dirty sombitch BamBam, some sort of entry load Winchester made a few years ago, 2-3/4ths inch hulls too, old traveling Bud gave me a case of those things.