Jelly Bean Rifle vs. Piggy Bank

This was the first test of our Pneumatic Jelly Bean Rifle. It consists of a plastic air cylinder connected to a long aluminum barrel. To fire it, we dropped an 18-pound bowling ball from a height of 10 feet directly on the air piston. We plan to refine the design a bit further, but for this first test we achieved a muzzle velocity of 350 feet/second. Definitely fast enough to be lethal!
  • Ballistics and Blasters
  • Chemistry and Reactions
  • Marshmallows and Food
  • Off the Roof
  • Cutting Things in Half
  • Lab Milestones
  • Testing Toys
  • Ambushing and Fun Abuses
  • Curiosities
  • Playing With Fire
  • That's a Good Question
  • Art Enthusiasts
  • Willful Distractions
  • Don't Try This at Home
  • Balloons and Bubbles