I would suggest picking up a few different kinds of ammo and trying them through your gun. I have personaly run magtech fmj, remington umc fmj, federal match fmj, tula ammo fmj, hornady critical deffense jhp, and federal hydrashock jhp through my brand new Walther PPQ .40s&w, and was very surprised at the differences. Personal deffense im sticking with Hornady, but for range ammo the biggest surprise was tula...reduced recoil, helped me to be a lot more accurate. Just my 2 cents.
I can't fix stupid!!
-Walther PPQ 40 s&w-edc
-Mossberg 590, 8+1 shot, 12 gauge-home defense