I've been looking around for SPs. I was originally loooking for a 32 mag, but they are a little hard to find. It appears there are a few more of the .327s. I'm perfectly happy with the .32, I've got a Single Six 5.5 already and a Marlin CB .32. This will be a trail peice. I'm not really concerned about the power difference between the two, just want a good shooter.