What seems to be lost, in that it is not definitively stated, is that tissue/ballistic gel behaves as a non-Newtonian medium/fluid - that it does not behave in an intuitive, numerically predictable manner to bullet mass, speed, and shape.

Some combinations simply seem to work better than others.

The way you find out which one works in a manner which may be compared is to shoot ballistic gel.

That was the point of the video.

Last edited by alukban; 04/26/21.