In my experience, you can offset the weight of a heavier pistol or revolver by getting a good belt and a well made IWB holster. You can never offset the disadvantages of trying to shoot a .357 Magnum self defense load in an air weight J Magnum frame pistol. Even the steel frame revolvers like the Model 60, are too light and too small to be comfortable to shoot with .357 Magnum loads.

If you absolutely insist on a J frame sized pistol, get a 3" SP 101. It weighs about 5 oz more than a 3" Model 60, which isn't a deal breaker for concealed carry but does help a bit with the recoil. It splits the difference weight wise between a steel J frame revolver and a K frame revolver with comparable barrel length.

That said, another 6 oz or so and you can carry a 2 1/2" K frame revolver and shoot .357 Mag loads with reasonable comfort, which means you'll shoot them more often and have much more potential to practice enough to get really good with the revolver.

Below are some comparative options. The lower right side is a 3" Model 60, and above it is a 3" SP 101. On the lower left side is a 2 1/2" Model 66 (the sweet spot for concealed carry .357 revolvers in my opinion), above it is a 2 3/4" Ruger Speed Six, and on the upper left is a 2 1/2" 686+. Weight wise, the SP 101 is 30 oz, the Model 66 is 36 oz, the Speed 6 is 37.5 oz and the 686 is 40 oz.