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Modernwarfaresubjects soldiers to a variety of lethal projectiles. Bullets fired fromrifles,pistols, andmachine gunscan penetrate flesh and often create terrible wounds by “tumbling” when they hit a hard substance such as bone. Shell fragments—jagged pieces of metal formed by the explosion of a...
The barrel of the MP18 was less than eight inches long, and it was chambered for 9-mm rounds introduced in 1908 for Parabellum, or Luger, pistols. It operated under a principle called blowback, in which the spent cartridge case, blown backward out of the chamber by the gases generated by...