At the range and for IDPA matches, where I shoot a Glock-21, for the most part I shoot Winchester "White Box" 230gr ball from Wally's World [chronos about 825fps, it's cheap and shoots fairly well]. I'm stockpiling MagTech 230 ball when I can find it and working towards reloading, but it takes time to gather all the tools.
For carry, I'm partial to Speer 230gr GoldDot... there's just SOMETHING about a flying ashtray... heheheh! For the Smith 638 Airweight it's, again, the GoldDot, Shortbarrel +P. I also have a good supply of Federal 230gr Hydra-Shok that I got from an LEO friend when his department switched their duty ammo to the Federal HST. I've carried the Corbon PowRBall, but personal testing [bound water-soaked phone books] showed inconsistent expansion. That's when I made the GoldDot change.
Check six. ~(*_*)~
When all else fails, align the sights on the target and press the trigger. -J. Michael Plaxco