Best 5.56 defensive round for expansion and cavity size

[WillBrink]

"Modern ammo designed for LE and self-defense"

Would you provide some documentation about this ammo?

Here's a YouTube of Speer Gold dot icepicking in ballistic gel.

You need to spend some time understanding terminal ballistics, temp and perm wound cavity, yawing, and other factors regarding the issue of how the 5.56 causes damage in tissue.

I do not believe a rifle with 5.56 is a good idea for home defense.

Oh boy. You're clearly well outside your lane and knowledge base.

Again, consider the distances and the high risk of over penetration.

I rest my case...