How a PTRS-41 works

The PTRS-41 or Simonov anti-tank rifle (Russian: ПротивоТанковое Ружьё Симонова) is the semi-automatic analog of the PTRD anti-tank rifle. The PTRS-41 was produced and used by the Soviet Union during World War II. In the years between the World Wars, the Soviet Union began experimenting with different types of armour-piercing anti-tank cartridges. Finding the 12.7×108mm insufficient, they began development of what became the 14.5×114mm armour-piercing round. Rukavishnikov developed an antitank rifle (ru:Пр