TKIV-85: Finland's Ultimate Mosin Nagant Sniper Rifle

The TKIV-85 is a Finnish sniper rifle built on a Mosin-Nagant action, featuring significant modifications for enhanced accuracy. Key upgrades include an octagonal bedding block for a free-floating barrel and a Valmet adjustable trigger. It is equipped with a Schmidt & Bender 4x36 scope with an 800-meter BDC.

This review details the Finnish M/91 .22 LR trainer rifle, a conversion of the Mosin-Nagant. Key modifications include a retubed barrel with a .22 liner, a lowered front sight, and a unique bolt-mounted extractor designed to manually eject spent .22 rimfire cases. The rifle demonstrates minimal recoil, characteristic of its caliber.

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 delves into the history and specifics of the Finnish m/91 pienoiskivääri, a .22 rimfire Mosin Nagant trainer rifle. Developed in the 1920s by the Finnish Defense Forces for cost-effective marksmanship training, these rifles featured barrels converted using the Salerno process or new barrels from Tikkakoski. The video explains their production numbers, their use during World War II, and their eventual sale as surplus. It highlights their scarcity in the United States due to not being sold in bulk to major importers.

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 video features Jonathan Ferguson of the Royal Armouries Museum testing the practical accuracy of a genuine Lee Enfield No.4 Mk1 T sniper rifle from World War II at distances up to 1,000 yards. The analysis explores the rifle's capabilities and performance, highlighting its effectiveness in its era. The video also promotes the."9 Hole Reviews" podcast, Slate Black Industries accessories, and Amazon affiliate links.

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.