I loaded and shot some snakeshot loads in my s&w model 60. The cases came out with the appearance of an indented ring near the forcing cone. After some cleaning and further investigation, it is not a ring, but a step from 0.3805" to 0.374" None of my other smith revolvers have the "step".
Should send it back to S&W, or get the cylinder reamed with a 357 reamer to clean up the step?
Would you worry about the step?
The 2 cases on the left were fired in a 686 and a model 19.