Then a .45 ACP, 200 gr. JHP.

Straight through all 4 walls.

I'm beginning to see a pattern here.

How about a rifle?

Here's Tman with an AR15 shooting XM-193 Ball.

But we began to have a problem.

The 5.56 deviated from the straight path so much, that it only hit 2 walls and then missed the third one.

This is the exit from the second wall.

The tumbling is clearly evident.

But look where it hit the third wall.

It just barely hit the edge of the wall.

We decided to try several more shots with the 5.56.