Swiss ZfK-55 Sniper Rifle

The Stamm-Saurer Model 1907 was a rare Swiss straight-pull bolt-action rifle developed by Hans Stamm for Saurer to compete for military contracts. Despite its high quality and innovative features like a unique rear sight and integrated cleaning rod, it was rejected by the Swiss military. The rifle competed against the Schmidt-Rubin K11 and G11, ultimately losing due to existing institutional knowledge of the Schmidt-Rubin and Saurer's refusal to license production.

This YouTube video from C&Rsenal's "Primer" series features Professor Gruffudd delivering a detailed, multimedia lecture on the Swiss Karabiner 31. The content delves into the historical development, functional aspects, and includes live-fire demonstrations of this historic firearm. The description also highlights channels and resources for supplemental reading and ammunition data, suggesting a thorough and educational approach to the subject matter. Support options for the channel are also provided.

The K31 Swiss rifle is highlighted as one of the most accurate military surplus firearms. It features a distinctive straight-pull bolt action, a 6-round detachable magazine often loaded with stripper clips, and a unique ring-style safety. The rifle demonstrates excellent accuracy and rapid cycling capabilities during live fire.

The m/27PH, Finland's first standard sniper rifle, featured a unique prismatic scope and modifications like a bent bolt and wooden cheek rest for improved ergonomics. Its scope utilized a novel inertia-based mounting system and a reticle with human silhouettes for range estimation between 300 and 800 meters. Despite its innovative features, the rifle is noted for its significant design flaws.

This review delves into the rare Swiss Schmidt Rubin M1900 Short Rifle and M1905 Cavalry Carbine. It highlights the evolution of the Schmidt Rubin action, moving locking lugs to the receiver's middle for a shorter, more efficient design. The M1900 was for support troops, while the M1905 lacked a bayonet lug, suited for cavalry.

This review delves into the civilian viability of the MRGG-S, a SOCOM-driven sniper rifle platform chambered in 6.5 Creedmoor. While the LMT-built 20-inch variant meets military accuracy requirements (0.8-1 MOA), it faces reliability issues when suppressed with specific ammunition. The video contrasts its speed advantage over bolt-action rifles like the Sig Cross, highlighting the importance of supporting gear for long-range success.

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.