Let us know how they shoot.
Some pistols have fairly tight chambers and need to have the ammo tweaked a bit to make them happy. They will generally give you the bonus of better accuracy for your troubles, so it's worth the time and effort. Others will feed and fire anything, but you usually sacrifice some accuracy. Glocks are a good example, designed to eat anything and not really match shooters without replacing the factory barrel with a nice tight custom one. For me, as long as a carry gun keeps everything on the paper at 50yds I'm happy. I don't need super fine accuracy, just MOa (Minute Of a$$hole). If I competed I'd have a whole different attitude about it though.