This is a discussion on + P within the Defensive Ammunition & Ballistics forums, part of the Defensive Carry Discussions category; Pardon my naivete, but what does the + P designate?
My questions hopefully will get less basic as my reading continues. Purchased a couple of ...
May 4th, 2009 09:32 PM
Pardon my naivete, but what does the + P designate?
My questions hopefully will get less basic as my reading continues. Purchased a couple of books over the weekend, as suggested on this forum. Interesting stuff. Was able to purchase only 4 boxes of American Eagle 115gr fmj. It was my third store.
May 4th, 2009 09:49 PM
+ pressure / Make sure your gun will take a steady diet of them
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May 4th, 2009 09:52 PM
+P stands for Plus Pressure.
+P+ is hotter still.
The +P designation is a classification term for over stantard pressure/power ammunition.
Greater than standard loadings but, less than a "proof" test cartridge.
On Average - 9mm +P + 10% pressure increase, .38 Special +P = 9% pressure increase, .45 ACP +P = 9.5% pressure increase
May 4th, 2009 09:55 PM
Yes +P stands for pressure.
+P loads are loaded to higher pressures than the SAAMI standards for that caliber, meaning that they should not be used in some older guns.
These loads yield higher velocity which translate in higher energy: a 15% increase in velocity will give approximately 30% more energy (energy increase as the square of velocity).
The first rule of a gunfight: "Don't be there !"
The second rule: "Bring enough gun"
jfl (NRA Life Member/Instructor - GOA - IDPA - GSSF - ex-IHMSA)
May 4th, 2009 09:59 PM
May 4th, 2009 10:07 PM
+P can also mean 'sore hand/wrist'.
+P+ many mean 'really sore hand/wrist'...
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NRA Life Member
May 4th, 2009 10:09 PM
plus one on that.
Originally Posted by retsupt99
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