Trying to find someone with a sierra book to help me out with 338 RUM 300 Gr SMK load data. If anyone has a sierra book and can shoot me the start and end loads and what powders they list I would really appreciate it. Thanks
Sorry, but there's no 338 RUM data in their latest manual. They may have done some since, but you'll need to give them a call to find out. Phone number is 800-223-8799.