Tried a search, couldn't find exactly what I was looking for. Vast majority of available 9mm FMJ (or, target/practice ammo?), in this area anyway, is 115gr; I notice most folks recommend 124gr or more for SD ammo. I do see quite a bit of 124, 147 etc in Critical Defense, JHP, etc. But I also see where folks say to practice with same weight they're going to carry (124gr FMJ/124gr JHP). Am I overthinking this, am I at a disadvantage carrying 115gr SD ammo, or should I concentrate more on "hits versus misses?"