The .950 JDJ (24.1×70mm) is a powerful large caliber rifle cartridge developed by American gunsmith and weapon designer J. D. Jones of SSK Industries. .950 JDJ cases are approximately 70 mm in length, and are based on a 20×102mm Vulcan case shortened and necked up to accept the .950 in (24.1 mm) bullet.

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...

The SSK .950 rifle, nicknamed Fat Mac, is an American single-shot rifle chambered in the extremely high-powered .950 JDJ round. SSK Industries, the makers of the rifle, received a Sporting Purposes Exception to deregulate the rifles.

The .950 JDJ is one of the most powerful rifle cartridges ever developed in the area of sporting rifles. It was designed by gunsmith and firearm designer J.D. Jones of SSK Industries, who it is named after, sharing his initials.

2024年8月29日 · Chambered for a custom .950-inch cartridge, the .950 JDJ is one of the largest and most powerful rifles ever created. While it may not have practical applications in the field, its engineering...

2012年1月19日 · It may break your ribs when you fire it, but the .950 JDJ has one advantage over other cartridges in the 20mm antiaircraft category: it has an almost-unique ATFE ‘sporting use exception’ which allows you to own it without jumping through the …

2024年2月21日 · JD Jones, a legend in cartridge development and barrel making, was the brain behind the .950 JDJ’s design. This massive round, fashioned from a 20 mm Vulcan Cannon round, delivers a staggering 38,000 foot-pounds of force, nearly triple that of a 50 BMG. Joining “Fat Mac” in the auction was the 14.5 JDJ, another of Jones’s creations.

2024年11月10日 · The .950 JDJ Fat Mac rifle is one of the magnificent feats in firearms engineering, highly handcrafted to deliver unparalleled power for each round. This unique rifle is sometimes called a “ballistic juggernaut,” with exceptional firepower positioned at extreme leading edges of modern firearms capabilities.

2017年11月17日 · JD Jones’ .950 JDJ cartridge is a generally described as the largest sporting rifle cartridge ever produced, producing more energy than even the 4-bore cartridges that match it in bore diameter. Only three of these rifles were made, and the original loading was a 2600 grain (168g) cast bullet moving at 2200 fps (670m/s), for a whopping 28,000 ...

2014年2月25日 · The .950 JDJ is the largest centerfire rifle ever made, built by SSK Industries of Ohio. Weighing in at 50 lbs., the rifle featured in the video is only the prototype variant, one of three total rifles built; the other two weigh in at 110 lbs.