I have had many different 357 mag revolvers. Smiths and Rugers. Of all of them the least expensive is a used Ruger Service Six. I bought this because I felt I needed a 4in 357 and it was 200$ less than a new gp100. I had never really given the old Rugers a second look but this one was a 161 prefix serial # with the heavy barrel. This service revolver carries and handle's (feels) great, but more importantly it has always shot great. It outshoots my 686, my sp101and more often than not my 6.5in Blackhawk. I feel that a 4in 357 is the most versatile gun to own, especially since I reload. Of all my handguns-revolvers and autos this would be the one I would choose if I could only have one. Anyone else have BIG love for the Ruger security/speed/service Sixes?