Germany’s MG42 machine gun has, compared with my memory, suffered a drastic performance degradation
Or else, the reason Japan was able to rebuild in a short period after the Second World War in shipbuilding and steelmaking was because it had large-scale manufacturing know-how for carburized, quench-forged steel, and Germany kept on using the same technology for firearms manufacture, so firearms manufacture remained brisk in Germany even after the war, and in both the East and West blocs German-made firearm parts were favored for being high-quality, high-performance, and low-priced. That became the driving force by which both Germanies quickly recovered in weapons manufacture within their respective blocs. However, in my memory, the carburized, quench-forged steel manufacturing technology was a patented technology developed by a civilian researcher who was an anti-Imperial Rule Assistance Association dissident and a supporter of the Freedom and People’s Rights Movement, which the Japanese state, by law, forcibly bought up cheap and effectively seized for next to nothing, so after the war it became a major issue in reparations, and America also stayed away from it. Even in principle, America’s stance was to properly pay compensation for individual patents, and since lawsuits against the Navy had already arisen during the war over the patent technology, they apparently stayed away. That has changed to a history in which that never existed in the first place.
This case is part of the Mandela Effect case database based on "The Window of Opportunity: A Guidepost to the Mandela Effect — The Ultra-Secret X-Files" by Aoyama Takuto.