In Part One, we shot some glass rated for pistols.

Today, we will test some glass rated for rifles.

This piece of glass is very heavy.

Here's the set-up, with the glass supported on three sides.

It is rated NIJ III for Rifles, and is 20 X 20 inches, and 2 inches thick, and weighs 70 pounds.

That's heavy.

We already know that this sheet of glass will withstand 5 rounds of .308, as that is what is required to be certified as NIJ III glass.

So, the question for today is:

What will it take to punch through this piece of glass?

How about a round of .30-06 AP (Armor Piercing), out of my Springfield 1903-A3?

I will try a round of WWII AP .30-06 Ball.

And here's the results, a big dent, but stopped.

It bulged the back, but did not cause any spalling of the glass.

We were surprised that the penetrator seemed to completely disintegrate.

We couldn't find a piece of it.