Thanks for the shout out, j38.
My old track was so far out of date I made a new one. I hope it helps.
Smith & Wesson 686-5 Plus Mountain Gun 4-in tapered Bbl Revolver in .357 Magnum,.38 Special, Plus P,. Bluebook of Gun Values (32nd Edition) indicates between $350 in 95% condition and $615 in 100% condition for this gun. I have 42 recorded prices for this model gun from $475 to $1063 over a period of 8 Yrs 5 Mos ending May 23, 2011. The average price as of that date was $675. No refurbs, no refinishes, regular sights. All represented as 95% or better. No distinction for engineering revision, if any, no special editions, no distinctions for box, papers, tools. Current or last MSRP is $849. [Note: the BBGV makes no distinction for the Mountain Gun, although it probably should. The BBGV price range is for the plain 686P.
Here's how the data charts out. Keep in mind the trendlines represent averages. Better examples of the gun would command higher prices, especially with box, papers, and so on. Excel was acting up on me for some reason and the date axis shows every other month. The data, however is monthly.
Here's the one I had:
