Because some people have all the fun, this is a video of Slow Mo Guys Gav and Dan shooting cue balls into ballistics gel at around 360MPH using a mini cannon.
Elephant Rifle Annihilates Ballistic Gel at 82,000FPS - The Slow Mo Guys @KentuckyBallistics
weapons - borninspace
When a cannon is fired into a ballistic observation gel, the gel trembles and the result is outrageous. - GIGAZINE
TO INFINITY AND BEYOND - borninspace
GCA-Newsletter_11_12.. - Gun Club of America
Does Momentum Equal Stopping Power? Let's Find Out! -The Firearm Blog
Thought this seemed interesting. Brings some light into the ammo we carry. : r/CCW
Cannon Ball vs Ballistic Gel in Ultra Slow Mo - The Slow Mo Guys Part
Erma ELG 10 air rifle
Suppressor-Friendly Ammunition Round-Up
Cannon Ball vs Ballistic Gel in Ultra Slow Mo - The Slow Mo Guys Part
Applied Sciences, Free Full-Text
DO NOT Build A Fully Automatic Battery-launching Air Gun
Andrew Smtih Gallery: George Gardner - Gun People
30 - Gun Club of America