I'm subbed to Jerry Miculek's channel on Youtube. Cracks me up because he's speed shooting a 500 with 300 grain bullets. (Jeez) The slow motion footage is amazing. Cool watching the jolt run his arms.
https://www.youtube.com/watch?v=nOzyqiT1FFA
https://www.youtube.com/watch?v=nOzyqiT1FFA