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! Failed to sell at auction. For more of this and other insanely huge rifles, check out Rock Island's video: https://www.youtube.com/watch?v=ROd1_S-4c6Q http://www.patreon.com/ForgottenWeapons Cool Forgotten Weapons merch! http://shop.bbtv.com/collections/forgotten-weapons If you enjoy Forgotten Weapons, check out its sister channel, InRangeTV! http://www.youtube.com/InRangeTVShow