The only requirements were that engineers had to design the weapon around die existing 5.56mm bullet while also preserving the muzzle velocity, lethality and accuracy of existing firearms and maintaining similar price points for affordability. In traditional firearms, the heat generated by repeated shots can melt non-metal materials in the round. Because a pivoting chamber is employed in the prototype, barrel heat does not transfer readily, which enables technologists to use the plastics in the ammunition case.
The Things They Carry Grace V Jean National Defense; Aug 2009; 94, 669; Docstoc pg. 38 Reproduced with permission of the copyright owner. Furt
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