Everyone’s favorite nutty Bavarian, slingshot guy Joerg Sprave, has escalated his airgun arms race by producing a shoulder-fired version of his already impressive DIY air rifle.
Using a steel compression chamber with 2-inch ball valves operating at 100 bars of pressure (that’s 1450 psi), it can fire a 3.3-pound aluminum tube with a 65mm diameter that ends in a blunted bolt.
When it goes off, Joerg pulls a spontaneous moonwalk.
Ho Ho Ho.
He is trying to optimize the device to get more performance.