Dots help you become a better shooter. If nothing else they demonstrate the importance of trigger control and good triggers. I don't have any dots on anything I might carry but I put one on a MKII and one on a 625. 50 yrds is doable now. I'm considering buying a 6" 44 mag, either a S&W or Colt, and putting a dot it. I think that would be a fun 50 yd. revolver.