This video was hosted on Vidme, which is no longer in operation. However, you might find this video at one of these links:
7.62 Splatter on a Helmet
November 11 2017
An older vid I forgot to upload. Actually I found in in a cache of others needing to be uploaded so look for them soon. I had been shooting my awesome Steel Ops target while a football helmet sat over the head. Bullet fragments impacted the helmet with every shot.