I dun know either for sure but I read this beside the video.
but I would have to think it was shot in very high speed and then played in super slow motion??????? Beats me Im just a trigger puller!

This guy takes a high speed camera and films things getting shot in super slow mo.

The one I liked the best was the bullet exiting the muzzle you can see the shock wave or pressure blast in front of the bullet!

That was pretty neat. Thanks for posting, Mossy.

Nice touch to the site, Mossy!
That ballistic gelatin was awesome!!!!!