Best tool for the job? Probably not. Effective? Plenty. There is a video on YouTube of a guy dumping a full cylinder of .454 into a target in less than three seconds from a Freedom Arms SA revolver. I can't think of a good reason to choose a single action over a double other than style but they can totally get it done. And you're going to look totally badass in the paper holding an SA six gun dressed like it's 1880 with one foot on a vanquished grizz. Probably won't have to buy your own drinks for a month.
A while back I got a hankering for a SAA clone so I looked for one with a transfer bar so I could carry it with all six rounds if I ever got the itch to do so. It would never replace my GP100 as a woods gun but why the hell not? There's a .44 Ruger Vaquero at an LGS I should go buy...