I only have two .357 Magnum revolvers; a S&W Model 65-5 and a S&W Model 28-2. I feed the 65-5 a steady diet of .38 Special; mostly 158 grain semi-wadcutters and 148 grain hollow base or bevel base wadcutters (my handloads). Rarely do I shoot .357 Magnum loads in the K-frame revolver. The 28-2, in my opinion, is overbuilt for the full magnum loads, so I could probably give it a steady diet of the high power stuff. Nevertheless, I shoot a lot of .38 special in that gun as well. Most days I am punching paper and having fun. .38 Specials are just fine for that. I always clean the chambers thoroughly.