This video from Armament Research Services (ARES) explores the unique Fosbery pump-action shotgun, designed around 1891. Notably, it features a bolt design with six independent locking lugs, remarkably similar to those developed by Johnson and Stoner over 50 years later for the AR-15 platform. The firearm's history is further complicated by its evolution from a pump-action rifle, later converted into a shotgun using a Winchester barrel. Despite not reaching commercial production, the Fosbery shotgun stands as an intriguing piece of early firearm innovation and a precursor to modern bolt designs.
This video showcases the impressive speed and effectiveness of a super-expensive tungsten carbide, through-coolant drill bit being used to create firing pin holes in BFG-50 bolt heads. The description highlights the difficulty of drilling high-strength alloy steel and uses a humorous analogy of being accused of witchcraft if this technology were shown centuries ago. The drill's performance is presented as almost unbelievable due to its speed and capability on tough materials.
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