I'm going to second those who've recommended used S&Ws. While I have opinions on the 586s/686s, I'm going to say only that a used K-frame (Model 19 or 66) might just be what you're looking for ... you say target shooting (presumably you want adjustable sights), not competition, so you may to make the rounds of all the LGSs, pawnshops and regional gun forums/websites to get an idea of what's out there. I found, for the princely sum of $395, this baby (a 19-3 with only a tad bit of wear/pitting on front site, but superb lock-up and accuracy):
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Frankly, as far as the used market goes, I'd favor S&Ws over Ruger. As stated previously by one member, the Speed SIx/Security Six market is drying up quickly with ridiculous asking prices lately, and as robust as the GP-100s are, the Smith K-frame is lighter, points and feels better, and typically is more accurate.
Side note, my brother has a early '90s Taurus 66 (back when the company did nice bluing with more discreet role-marks) which, although the internals are not as nicely finished as a comparable S&W, has provided excellent performance and darn good accuracy. Can't speak to recent Taurus revolvers, but I've gone through a couple 85s and an 82, all were worthy pieces and hardly "junk" (kinda think the way you phrased your opinion of Taurus in the OP invited the usual brand-basher suspects to come in).