I bought the first Model 58 I saw at a gunshow in Northern Virginia in the last several years.
I got it from a guy I used to work for.
A very nice 4", probably about 97%+, fired very little at all, not even enough to put a noticable drag line around the cylinder.
I hate to tell you this, but I only paid $295 for it.
For some reason 57s and 58s seem to be exceedingly scarce in this area. I don't know if it is a factor of their relative unacceptance by the general shooting population, or the fact that people who know and appreciate the .41 have snapped them all up.
Any way you look at it, though, I've now got mine, and I'm quickly finding out what people know and like about the .41. It's a bruiser with Remington 210-gr. JSPs, but not so much as the .44.
I REALLY like mine!
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Beware the man with the S&W .357 Mag.
Chances are he knows how to use it.