How Powerful is a Lego Sniper

I just tried to measure and calculate the speed and kinetic energy of the projectile.
I don´t have professional measuring tools, so I came up with counting the frames of the slow mo video.
Main video:    • Working LEGO Sniper Rifle SPR 208 - C...  
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The content in this video is made strictly for entertainment purposes. All acts taken by persons in in this video are conducted in a safe controlled environment and should not be attempted or recreated.

LEGO® is a trademark of the LEGO Group, which does not sponsor, authorize or endorse this video or the content herein.

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