Hello, I am new to shooting the Swiss K31's. Have three and shot them with the factory PPU manufactured with 173 FMJ. I cast bullets for 25 years, and quit casting about 15 years ago. Now I am getting the casting fever again. Looking for help me with sharing suggestions of favorite bullet to use for the 7.5x55 Swiss. What mold manufacturer, style, weight, and sizing ? And the list goes on..... I would be glad to consider any suggestions or experiences you may have. Thank you for taking the time to read this request! John