There is NO, repeat NO "cut & dried" answer to the 9mm ammo question, only certain basic guidelines. Fist, what to you intend to do with the load? ( Civilian CC & self defense use, LE duty and or off duty use, what climate(s) are you exposed to, etc.) Another factor to consider is what load does your weapon favor, as far as function & accuracy. For "basic" civilian self defense use, I'd go with one of the better 115 jhp+P+'s. They offer decent terminal ballistics, with rapid expansion & limited penetration. For "basic" LE use, I'd lean towards the WW/Ranger 127 SXT+P+, the Rem. Golden Saber 124 +P+, or Speer's Gold-Dot 124+P+. I'm partial towards the 127 gr. Ranger load, but any of the above should suffice for basic duty / off duty use. Again, certain circumstances warrant different descisions. Am I in an extremely cold climate? If so, I'd lean towards a heavier projectile with deeper penetrative characteristics. A warmer climate could indicate a somewhat lighter bullet, due to less clothing being worn. Will I possibly be required to penetrate auto bodies or barricades, all of these factors should figure into the final descision. Without knowing the intended useage of the load(s), It's difficult to choose the correct one for the job at hand.