Shooting the .950 JDJ - Largest Sporting Rifle Made

The .950 JDJ rifle, nicknamed 'Fat Mac', is a custom build by SSK Industries featuring the largest sporting purpose cartridge. Its 24.1mm cartridge, derived from a 20mm Vulcan case, fires a 2600-grain bullet at 2200 fps. Despite its caliber exceeding the .50 BMG limit for typical registration, it received an ATF sporting purpose exemption. The rifle's massive muzzle brake is highly effective, capable of generating significant muzzle blast.

The 'Fat Mac' by SSK Industries, chambered in the massive .950 JDJ, is the world's largest sporting rifle. Developed by J.D. Jones, it utilizes a modified 20mm Vulcan case and fires a 2600-grain bullet at 2200 fps, generating immense energy. Despite its caliber, it legally transfers as a rifle due to an ATF sporting purposes exemption. The rifle's design, including its 60+ pound weight and substantial muzzle brake, is engineered to manage extreme recoil.

This video details the unique 'French Finger Trap' issue with the MAS-36 rifle's bayonet, where two rifles can become unintentionally locked together. A 1951 French arsenal memorandum identified this problem, proposing a simple modification to the bayonet handle. Drilling a small hole allows a tool, like a firing pin, to depress the internal spring, enabling the separation of locked rifles.

The M134 Minigun is a scaled-down 7.62 NATO rotary cannon, requiring 24V DC power and consuming 1.5 kW. Its high rate of fire (3,000+ RPM) is essential for aircraft engagement windows. The complex delinker mechanism is critical for feeding ammunition, and practical hand-held use is impossible due to weight and recoil. Live fire demonstrates rapid ammunition consumption and the need for indirect aiming.

The H&K G11 is a revolutionary prototype assault rifle designed in the late 20th century, notable for its caseless ammunition and unique rotating drum bolt mechanism. Despite advanced features like a 2000 RPM burst fire rate and integrated optics, its development was ultimately halted by geopolitical shifts and cost concerns.

This video demonstrates the assembly and live-fire of the German 1936 pattern light mortar (L.Gr.W.36). It highlights the mortar's leveling mechanism for accuracy and the difficulty in visually tracking its 50mm projectiles after firing. The content showcases historical military hardware and its operational use.