RT20: Croatia's Insane Kludged 20mm Anti-Materiel Rifle

The Barrett M82A1, a .50 caliber rifle, is primarily designed for anti-materiel roles and EOD, not as a dedicated sniper rifle. It typically achieves around 3 MOA with standard ammunition, suitable for its intended purpose of high-volume firepower at range, rather than pinpoint accuracy. Its semi-automatic action supports this design philosophy.

This video analyzes the Springfield Kuna, a new Croatian firearm. It's described as a delayed-blowback PCC/SMG chambered in 9mm, likely featuring a pistol caliber carbine design. The video appears to be from the 'Forgotten Weapons' channel, suggesting a focus on historical context, design, and potential operational characteristics of this less common firearm.

The Kresimir is a unique semi-automatic grenade launcher developed in Croatia during the Homeland War. It fires M50 hand grenades using 7.62x39mm blank cartridges for propulsion, a complex two-stage firing sequence that first ignites the grenade's timer and then fires the blank. The weapon features a mechanical charging handle due to its heavy bolt and a reciprocating magazine, with sights graduated up to 500 meters.

The Agram 2000 is a Croatian 9mm submachine gun developed in 1990, known for its compact size and integrated suppression system. Despite its unique design features like hammer-fired, closed-bolt operation, it was rejected by the Croatian Army due to a difficult recoil spring assembly. It later gained notoriety on the black market and in popular culture.

The Springfield Armory Hellion, a civilian variant of the Croatian VHS-2 bullpup, offers a compact 16-inch barrel in a 5.56 NATO package. It features ambidextrous controls, a short-stroke gas piston system, and a 5-position adjustable stock. Despite a typical bullpup trigger, it demonstrated reliable performance and good accuracy in range tests.

This video tests the destructive power of a 20mm round fired from a Serbu Typhon 20 cannon into a Clear Ballistics gel torso backed by a 2.5-inch aluminum block. High-speed footage reveals the immense energy transfer and penetration capabilities of the large caliber projectile. The test concludes with an inspection of the gel, the aluminum block's impact zone, and the recovered, mushroomed projectile.

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.