I have found you can't go wrong with a Ruger revolver, they are the strongest made. If you can find an old Security-Six or Service-Six or best of all a Speed-Six, good on ya!, You'll probably find lots of GP-100 and GP101 and SP-101's in the shows. Also consider Smith & Wesson K- and L-Frames, which are very good. N-frames are really good, but I doubt you'll find one within your budget. Taurus revolvers are consistently good also. Charter Arms makes some good guns, but not always, as with Rossi, I'd use caution with these brands. All make 21/2" up to 6" barrels, so whatever you want to do. Hope that helps.