I shot a pellet into a window. One of those old style 9 panel windows so the actual glass surface area is small thus tighter cohesiveness. Anyway I would say the hole is similar. Very round, near perfect round, with spidering and crevacing. The hole is about right, though they show much greater spidering and crevacing.
However, that’s not what a store front window would look like. They would have a very small entry and very large exit pattern.
So how large was the hole you observed? Was it a half inch, quarter inch, one inch in diameter? I think much depends on the thickness of the glass and how it is made.