It made a deep hole, but did not penetrate.

Lastly, let's try the .44 Magnum, with full-power loads.

I have my Ruger Super Blackhawk, with some hot 240 grain JSP loads.

It stopped the .44 Magnum, just as designed.

It bludged the back of the glass, but did not have any shards come off.

Now we will try to "mistreat" the sample, by going above and beyond what it expected for this glass.

I will shoot into the same spot and see how many shots it takes to finally penetrate the sample.

As I loaded up my Shadow, I asked Vern, "How many will it take?"

His guess: 5 rounds.

I said, "I'm loading 10, because I believe it might take more."

Here I am shooting it in the same general area.