Just for fun, a few 22Lr penetration vids I like. not saying its a long range killer, but worth noting to be careful what is behind whatever you shoot, regardless the calibre. I have some cop mates not overly gun savvy who scoff at 22's too....a bit worrying being the most likely calibre they will get threatened with.
Windscreen
https://www.youtube.com/watch?v=yKFvrqCG118
Multiple doors
https://www.youtube.com/watch?v=1Kuy--TOf0A
11 layers dry wall
https://www.youtube.com/watch?v=1pSVn7ozXTQ
11" Gelatain at 300 yards
https://www.youtube.com/watch?v=-DzLQGv-w5M
Pine board at 440 yards.
https://www.youtube.com/watch?v=OUM1r_444CY