It might be that the issue with S&B primers is confined to progressive presses. I have fewer than 3000 of their primers left. That means I've loaded over 7000 of them. Other than a single failure to fire I haven't seen any other problems. I have had a lot of problems with Winchester primers though. I often had issues with them not seating properly without some real force. I never buy Winchester anymore. I have some left but would only use them is nothing else were available to me. Not fond of their brass in .357 either.