Made by SSK Industries, the .950 JDJ is the largest sporting rifle made. The cartridge began as a 20mm Vulcan round, cut down to 70mm case length and necked up to 24mm (.95 caliber). It required a special sporting purposes exemption form the ATF to not be classified as a destructive device under the NFA. It's a pretty huge rifle with a pretty huge muzzle brake and pretty huge recoil!
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