This video was hosted on Vidme, which is no longer in operation. However, you might find this video at one of these links:
What will a Marlin .22 magnum do to concrete?
January 1 2017
A Marlin model 25M chambered for .22WRM is used to see what a .22 magnum 38 grain .22 magnum hollow point will do to concrete. Single shots produced approximately 1/2 inch of penetration, a 5 shot composite yielded 3/4 inches of penetration. A 25 shot composite was fired which yielded 2.1 inches of penetration.