Yeah, a turn a bullet is a bit slow. A turn in Unisystem is 5 seconds of time. You should easily be able to use a speedloader in one turn. Though I could see being able to load a number of rounds equal to maybe Dex -1 or something like. A bullet a second is pretty fast loading and if your bullets aren't right there to grab (in a pocket, a pouch, etc, instead of a bandolier for example) it'll take at least a sec to grab a handful. Maybe if you're trying to hurry and load in one Turn, have a Simple Dex Test (or Difficult, depending on the circumstances) to make sure you don't botch it and throw your bullets one way and your pistol the other.

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Don't go away mad...

Life's one big joke. So laugh often, laugh hard, don't get pissy over the little things. Cause the punchline's not really worth worrying over.