Crankylove and I shoot .327 Federal, .32 H&R, and .32 S&W Long in our revolvers.
Since my revolver is a single action, I also sometimes feed it .32 S&W and .32 Auto.
Even if I wanted to shoot the .32 Auto's, they will not fire in my SP101. They will chamber just fine, but apparently the firing pin on my little Ruger does not protrude far enough to set off primers in the .32 Auto cases. .32 S&W Long, .32 H&R Mag, and .327's are fine, but the little guys just don't want to play nice. It's not a big deal to me though, as I have a decent supply of .32 Long brass and use that for all my low end loads (.32 S&W cases have been out of stock locally for a few months now), and load progressively hotter with the .32 H&R and .327 cases.
This gun and its versatility (with regards to ammo interchangeability) has become one of my all time favorites to shoot, and every one that tries it out comes away with a smile on their face.