Our favorite mad German scientist Joerg Sprave has experimented with all kinds of unconventional guns that shoot sharp things. He’s built a catapult for axes, a Nerf gun that shoots scalpels, and a pump-action gun that fires throwing knives. His latest build takes that last project to its absurd extreme; this slingshot rifle shoots spinning knives. Why not?
At its core, the gun is a pretty regular slingshot that uses rubber bands to catapult the knife down a launching track. The unique part is that the whole barrel system is mounted on bearings, which let a power drill spin the knife and barrel as the gun is firing. The result? A projectile that comes out spinning, much the same way a bullet comes out of a rifled barrel.
The gun certainly works, but the rifling doesn’t have that much of a stabilizing effect. Even with a serious spin, the knives still tend to tumble after only a few feet. Sprave chalks it up a lack of precision machining (he is working with wood, after all) and/or the large surface area of the knife’s flat sides.
So no, a “rifled” knife gun is not exactly a practical firearm. But maybe that’s for the best.
Read the Original Article at Popular Mechanics
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