I'm a new reloader who has been learning a lot from this forum. I'm in the process of starting to reload for the 7MM Rem Mag. and read about a die sold by Midsouth Shooters Supply and made by Innovative Technologies. The ad says, "Conventional resizing dies cannot fully restore belted cases to their original size just above the belt. These cases soon develop a "bulge" around the case (after 2 or 3 firings) and once that happens, the case is useless. Our die is used to eliminate the case "bulge" after using your full length die."

Is this a gimmick, or does this die really work to prevent the pressure ring from developing? Does anyone use one of these dies? If so, how many reloads can you get from the case?