Lehigh Defense - Close Quarters

Close Quarters The CQ is a lightweight, hyper velocity design using an aluminum core and pre-stressed jacket. The aluminum core initiates the expansion slightly after contact, pressing back into the pre-stressed jacket and activating a violent, incapacitating energy transfer. The aluminum nose optimizes feeding and provides a barrier blind entry. The pre-stressed jacket separates into petals sized for appropriate penetration based on the specific cartridge. These petals, base, and core are all designed to penetrate no more than 18", transferring a huge amount of energy to the target in a very short timeframe. The design of the individual high mass/high energy petals overcome other designs that use powdered metal or plastic composite projectiles that disintegrate upon impact. The energy is there; our goal is to utilize every bit of it and dumping it all on the surface in a non-vital area is not appropriate for a personal defense design.

This technology utilizes the hyper velocity to transfer enormous energy based on mass-energy equivalence, E=1/2MVSq. Given that the system pressure of each cartridge is fixed to some value determined by SAAMI, any increase in bullet weight or velocity will both increase the muzzle energy, but will also increase the chamber pressure.

 
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