its a little late to suggest buying a new gun.. but this is my answer to your question.
12 oz 357, I carry a full power 158g load in it.
Unfortunately no longer produced...but I got mine.
Got mine too... perfect for bear country. I know everybody prefers spray.. but it's the last thing I want when something's got me down, chewing on me. Can't say Hi-V ammo is fun to shoot in this though - probably why it's not made anymore. It's got a bite.