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<\/center> <\/p>\nAnd here\u2019s a photo of that rifle\u2019s cartridge (far right below) \u2013 with a few others included for comparison:<\/p>\n
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![](\"https:\/\/i.pinimg.com\/originals\/0b\/36\/f6\/0b36f6e5cab2c4fd966eec4d2433fbee.jpg\")
<\/center> <\/p>\nNo, those are not Photoshopped images. That\u2019s an actual rifle, and an an actual cartridge \u2013 the .950 JDJ<\/i><\/a>.<\/p>\n Yes, that “.950” means exactly what you think it means.\u00a0 The barrel of the above rifle has a groove diameter of 0.950 inches<\/b><\/em>.<\/p>\n It was developed by J. D. Jones of SSK Industries. The cartridge was based on a 20mm cannon round (the 20x110mm Hispano); the case was shortened to 70mm, then necked UP from 20mm to accept a .950\u201d diameter bullet.\u00a0 It\u2019s commonly referred to as \u201cFat Mac\u201d.<\/p>\n The rifle and cartridge were formerly produced by SSK Industries. Three rifles were made; production of the ammunition ceased a few years ago. When in production, the rounds cost around $40 \u2013 each<\/u>.<\/p>\n Yeah, both are \u00a0 \u00a0\u00a0 It’s a bench-rest stock because the rifle\u2019s muzzle brake alone weighs roughly 18 lbs<\/i>; various accounts give the rifle\u2019s total weight at somewhere between 60 and 110 lbs<\/i>, depending on the precise configuration.<\/p>\n From Wikipedia, here are the ballistic characterists of the round when fired from the above rifle (barrel length not given):<\/p>\n Bullet Weight<\/u>: 3,600 grains (!)<\/p>\n Muzzle Velocity<\/u>: 2,200 ft\/sec<\/p>\n Muzzle Energy<\/u>: 38,685 ft-lbs<\/p>\n Those numbers aren\u2019t misprints. The bullet indeed weighs 3,600<\/b> grains, not 360 – and at 7,000 grains per pound, that’s a bullet weight of over half a pound (nearly 8 \u00bc ounces)<\/u>. The muzzle energy approaches 3x that of a .50 BMG round. In fact, the muzzle energy is over 1,000 ft-lbs greater than the kinetic energy of a 2,800 lb car moving at a speed of 20 MPH<\/i>.<\/p>\n Believe it or not, apparently it\u2019s actually legal to own in most states without going through the BATFE\u2019s \u201cdestructive device\u201d rigamarole. It seems SSK sought – and received – a \u201csporting use exception\u201d for the cartridge and rifle during development.<\/p>\nfreakin\u2019 huge<\/del> \u00a0\u00a0\u00a0\u00a0 quite large \u2013 and yeah, that\u2019s a bench-rest stock on the rifle. There’s a good reason for that.<\/p>\n