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Thread: What does +P mean?(as it pertains to ammo of course)
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Old 01-23-2010, 10:47 AM
  #9  
bigbulls
Boone & Crockett
 
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The .40 is already a high pressure round, I don't think you will be seeing them bump that one up..
The 40S&W is not what I would call a high pressure cartridge. It operates at the same MAP of 35,000 psi. that the 9mm and .357 magnum operate at.
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