My .327 Sp101 is my preferred carry gun, carried strongside IWB or OWB at about 4:30. Gun holds six, but I always carry a reload for it.
I always carry a speed-strip with 7 rounds on it (why 7? Its just what I loaded up once upon a time and it stuck) in my back pocket. Not terribly fast for a reload, but easy to carry and that way I have something. In addition to that, I am trying to carry a strong-side belt reload, but that usually only happens if I have an OWB holster. Usually a speed-strip ina Simply Rugged dump-pouch, but I am trying to get myself to move to a speedloader, which I carry a single on my belt more and more frequently.
I'm quite confident in the 6 in the gun, but its easy to carry a speed strip reloads. I'm starting to want greater speed in reloading, just in case, so I am moving to keeping a speed loader when the bulk isn't too bad.
If I'm going away for more than a day, I usually toss 2 more strips or loaders in my bag. .327 isn't as common as other cartridges, so I bring some with me when I can't get home to top off.
When I carry an auto, I always carry a reload, but mainly in case of malfunciton problems.