Ok. You nailed it - I'll have to try a harder one next time.
It's my stainless-steel Ruger SP101 .357 Magnum. The photo was taken in my house and the date - whenever the exif says it was but definitely last year. Heck i only bought that gun in 2006.
I id'ed the gun before I even read the post, so that one really gave it away. Good try, though. To pull it off a little better, I would try an older looking model like a Blackhawk or Vaquero, with either .38 or .45LC shells.