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Development of high power air gun. It is a high pressure pre-charged pneumatic rifle triggered by a high-voltage electrical discharge. 0.45 calibre and I am still experimenting with the projectiles. youtube.com/watch?v=3bh1qDong58

There is some ambiguity when it comes to "airgun power". Projectile energy is proportional to the bullet mass and its velocity and is usually given for specific guns as muzzle energy; close the muzzle. So a 0.45 heavy bullet can produce some 500 ft-lbs at 700-800 fps a short distance from the...