Specifically tuned brass to a handgun is not essential. High power rifle, yes. Then I would spend the time and the money on LE Wilson sizer die made to your chamber fired brass as well as neck turned prior to firing. A pistol IMO, should run just about all brass if properly re-loaded. Or just roll size everything. I had a little problem with storm lake barrel chambers being a little too tight, so I had the chamber reamed to spec and everything runs.