Soviet+Union

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 * PPSH-41**- This Soviet Sub-machine gun was one of the widely mass produced weapons of its kind during the war. It is operated simply by a blowback action with an open bolt. It used either a box or drum magazine. The drum magazine used earlier in the war was replaced with the box magazine, which was made thicker then the drum. The drum magazine had jamming issues that were thought to come from the cold weather conditions in Russia. We can apply Thermo to this problem for being the reason why two different materials from the magazine, to the feed faced many problems. Size of materials can change due to temperature. The box magazine for this sub-machine gun provided a much easier method when reloading in battle.




 * SVT-38**- Stalin demanded a new design of a semi-automatic rifle which was much needed in keeping up with technology in the Second World War. Two men designed and created the SVT-38, which was a gas operated rifle with a short-stroke spring-loaded piston that was actually located above the barrel, and fed ammunition on an incline towards the barrel. This design helped ease the production of the rifle, which was key for the Soviets “quantity over quality” standard. This design also allowed for a larger magazine to feed into the action of the rifle. This rifle could hold 10 shells, were many other similar designs internationally can only hold 8.