August 29, 2011, 2:35 PM — You gotta love Joerg Sprave - he found something he loves to do (make slingshots) and a forum for showing the things that he loves (YouTube). His latest YouTube video shows how he made a full size version of his desktop cannon slingshot. The big version can fire 80mm steel balls and uses rubber that's 72 times stronger than conventional slingshot bands.
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