“I ran a 50/box of 38 sp rounds through my new Taurus 605 as break-in rounds and switched to the Norma 357, JHP 158gr. Strong round, fired perfect but all the Norma cases expanded so much they had to be punched out of the magazine with a punch and hammer. The 38 sp rounds fell out of the magazine and didn't even need to use the extractor. Seems like high cup pressures were the reason for the extreme expansion.”
