Quoted:
Quoted: Thanks for the suggestions. What does +P mean? Is it just loaded hotter or does it have to do with the bullet design?
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+P means that the ammo is loaded to higher velocities, it has nothing to do with the bullet design.
I'm not 100% positive on what it means but I think +P means + Pressure. I could be completely wrong on that but I read a long time ago what it meant and for whatever reason that’s what I remember.
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I minor point, but...
+P does not
necessarily mean higher velocities compared to a standard pressure round. Generally, higher velocities result but not always. +P and +P+ simply mean the cartridge is loaded to higher PEAK pressures. In some cases higher peak pressure might result from the use of low flash powders. With such powders higher PEAK pressures might be recorded due to burn rates and whatnot. But the resultant bullet velocity might only equal that of some other cartridge with lower peak pressure (but has a longer-burning, higher flash powder, for example). ETA: I'm sure there's a clearer way to say that. Hope you can make sense of it.
Federal's old P9HS3G1 (124gr +P+ Hydra-Shok) is a decent example of this. It's got high peak pressures, low flash, and unexceptional velocity.
The Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) pressure specifications:
9mm = 35,000psi peak
9mm +P = 38,500psi peak
9mm +P+ = no standardized SAAMI pressure. In other words, it is whatever the manufacture chooses it to be. However, I believe there to be a "general industry agreement" that +P+ stays under about 42,000psi peak. One source lists Speer GD 115 +P+ as 40,700psi peak, for example.
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To address the original question, the "best" 9mm breaks down to something like this:
In no particular order:
Federal Tactical (hard to get)
Federal HST (pretty easy to get)
Remington Golden Saber (easy to get)
Speer Gold Dot (easy to get)
Winchester Ranger T (fairly easy to get)
(My availability assessments are based on my personal experiences.)
The above are all top tier and the greatest and latest bullet designs. I lean towards the 147gr loadings, as they tend to stay together and penetrate more deeply (from the tests I've seen). 124/127 gr are pretty good too but I'm getting away from my older preference of light and fast bullets. I wouldn't feel under armed with Federal's 9PBLE (Hi-Shok 115gr +P+), but I'd rather have something else. After placement, I believe that penetration is THE MOST important factor. The 147grainers excel at penetration and they expand nicely too.
Incidentally, IMO the difference between the very best cartridge and an OK or pretty decent cartridge is quite small on a
practical level. Nonetheless, I do prefer the top tier stuff. Why not use the best? For me, there isn't a good reason not to use the loads that test the best. For others maybe there is a good reason (i.e. cost, availability, some personal preference I don't agree with or understand, etc.).
Basically, some cartridges (the top tier) come out on top in the currently preferred testing protocols but there are lots of (perhaps) respectable choices. Some people love 9BPLE because there is such a long track record of successful use. Some like WWB 147gr JHP because they feel it's 99 percent as good as anything else and cheap enough to practice with exclusively.