I'm not having any problems with cartridges feeding in either of my two 5.7s, and I am using a dozen mags in my training classes. However, the magazine retention is still a problem. I made some pads from an old belt but they are not thick enough. I have been working with forum member Chris (s&w19.357) who has provided me with some experimental pads. They are gluing up now and I will try them next week. The problem with finding commercial pads seems to be that the configuration of the base of the magazine is not conducive to adding extension pads. At least, I still have not found any on the market anywhere.
- Bruce in Ohio