Not sure the point of all these ballistic tests on dry wall / stud walls.
No matter what round you use, if you miss your target, it's going through the wall unless you hit something substantial.
And depending on the load it's going to go through even if you hit your target.
Since I live in a rural area, I don't really have to worry about neighbors so I guess I am OK.
I would be sure to make sure where my wife or guests were located though.
I can patch a wall. Can't say the same about a person.