I am presuming these DW's are in good operating condition. If so, you won't get a better 357 for $300. Good as the DW revolvers are, they are not so widely appreciated as they should be, and in some areas have a poor resale value. In this case that is working to your advantage since you are buying a used one.
The Dan Wesson is simply the most accurate and strongest double action revolver available. DW dominated silhoutte shooting for a number of years. Generally 7 out of the top 10 would be DW's.
I'd take the six inch one but that's a personal preference.
